def setHandler(): """ Detect which is the target web application back-end database management system. """ count = 0 dbmsNames = ( "MySQL", "Oracle", "PostgreSQL", "Microsoft SQL Server", "SQLite", "Microsoft Access", "Firebird", "SAP MaxDB", "Sybase" ) dbmsObj = [ ( MYSQL_ALIASES, MySQLMap, MySQLConn ), ( ORACLE_ALIASES, OracleMap, OracleConn ), ( PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn ), ( MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn ), ( SQLITE_ALIASES, SQLiteMap, SQLiteConn ), ( ACCESS_ALIASES, AccessMap, AccessConn ), ( FIREBIRD_ALIASES, FirebirdMap, FirebirdConn ), ( MAXDB_ALIASES, MaxDBMap, MaxDBConn ), ( SYBASE_ALIASES, SybaseMap, SybaseConn ), ] if Backend.getIdentifiedDbms() is not None: for i in xrange(len(dbmsObj)): dbmsAliases, _, _ = dbmsObj[i] if Backend.getIdentifiedDbms().lower() in dbmsAliases: if i > 0: pushValue(dbmsObj[i]) dbmsObj.remove(dbmsObj[i]) dbmsObj.insert(0, popValue()) break for dbmsAliases, dbmsMap, dbmsConn in dbmsObj: if conf.dbms and conf.dbms not in dbmsAliases: debugMsg = "skipping test for %s" % dbmsNames[count] logger.debug(debugMsg) count += 1 continue handler = dbmsMap() conf.dbmsConnector = dbmsConn() if conf.direct: logger.debug("forcing timeout to 10 seconds") conf.timeout = 10 conf.dbmsConnector.connect() if handler.checkDbms(): conf.dbmsHandler = handler break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def heuristicCheckDbms(injection): retVal = None if not Backend.getIdentifiedDbms() and len(injection.data) == 1 and PAYLOAD.TECHNIQUE.BOOLEAN in injection.data: pushValue(kb.injection) kb.injection = injection randStr1, randStr2 = randomStr(), randomStr() for dbms in getPublicTypeMembers(DBMS, True): Backend.forceDbms(dbms) if checkBooleanExpression("(SELECT '%s'%s)='%s'" % (randStr1, FROM_DUMMY_TABLE.get(dbms, ""), randStr1)): if not checkBooleanExpression("(SELECT '%s'%s)='%s'" % (randStr1, FROM_DUMMY_TABLE.get(dbms, ""), randStr2)): retVal = dbms break Backend.flushForcedDbms() kb.injection = popValue() if retVal: infoMsg = "heuristic test showed that the back-end DBMS " infoMsg += "could be '%s' " % retVal logger.info(infoMsg) return retVal
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ (DBMS.MYSQL, MYSQL_ALIASES, MySQLMap, MySQLConn), (DBMS.ORACLE, ORACLE_ALIASES, OracleMap, OracleConn), (DBMS.PGSQL, PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), (DBMS.MSSQL, MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), (DBMS.SQLITE, SQLITE_ALIASES, SQLiteMap, SQLiteConn), (DBMS.ACCESS, ACCESS_ALIASES, AccessMap, AccessConn), (DBMS.FIREBIRD, FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), (DBMS.MAXDB, MAXDB_ALIASES, MaxDBMap, MaxDBConn), (DBMS.SYBASE, SYBASE_ALIASES, SybaseMap, SybaseConn), (DBMS.DB2, DB2_ALIASES, DB2Map, DB2Conn), (DBMS.HSQLDB, HSQLDB_ALIASES, HSQLDBMap, HSQLDBConn), ] _ = max(_ if (Backend.getIdentifiedDbms() or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for name, aliases, Handler, Connector in items: if conf.dbms and conf.dbms not in aliases: debugMsg = "skipping test for %s" % name logger.debug(debugMsg) continue handler = Handler() conf.dbmsConnector = Connector() if conf.direct: logger.debug("forcing timeout to 10 seconds") conf.timeout = 10 dialect = DBMS_DICT[name][3] if dialect: sqlalchemy = SQLAlchemy(dialect=dialect) sqlalchemy.connect() if sqlalchemy.connector: conf.dbmsConnector = sqlalchemy else: conf.dbmsConnector.connect() else: conf.dbmsConnector.connect() if handler.checkDbms(): conf.dbmsHandler = handler break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def heuristicCheckDbms(injection): retVal = None pushValue(kb.injection) kb.injection = injection randStr1, randStr2 = randomStr(), randomStr() for dbms in getPublicTypeMembers(DBMS, True): Backend.forceDbms(dbms) if checkBooleanExpression("(SELECT '%s'%s)='%s'" % (randStr1, FROM_DUMMY_TABLE.get(dbms, ""), randStr1)): if not checkBooleanExpression( "(SELECT '%s'%s)='%s'" % (randStr1, FROM_DUMMY_TABLE.get(dbms, ""), randStr2) ): retVal = dbms break Backend.flushForcedDbms() kb.injection = popValue() if retVal: infoMsg = ( "heuristic (extended) test shows that the back-end DBMS " ) # not as important as "parsing" counter-part (because of false-positives) infoMsg += "could be '%s' " % retVal logger.info(infoMsg) return retVal
def setHandler(): """ 检查目标使用的数据库 """ items = [ (DBMS.MYSQL, MYSQL_ALIASES, MySQLMap, MySQLConn), (DBMS.ORACLE, ORACLE_ALIASES, OracleMap, OracleConn), (DBMS.PGSQL, PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), (DBMS.MSSQL, MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), (DBMS.SQLITE, SQLITE_ALIASES, SQLiteMap, SQLiteConn), (DBMS.ACCESS, ACCESS_ALIASES, AccessMap, AccessConn), (DBMS.FIREBIRD, FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), (DBMS.MAXDB, MAXDB_ALIASES, MaxDBMap, MaxDBConn), (DBMS.SYBASE, SYBASE_ALIASES, SybaseMap, SybaseConn), (DBMS.DB2, DB2_ALIASES, DB2Map, DB2Conn), (DBMS.HSQLDB, HSQLDB_ALIASES, HSQLDBMap, HSQLDBConn), (DBMS.INFORMIX, INFORMIX_ALIASES, InformixMap, InformixConn), ] _ = max(_ if (Backend.getIdentifiedDbms() or kb.heuristicExtendedDbms or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for dbms, aliases, Handler, Connector in items: handler = Handler() conf.dbmsConnector = Connector() if conf.direct: dialect = DBMS_DICT[dbms][3] if dialect: sqlalchemy = SQLAlchemy(dialect=dialect) sqlalchemy.connect() if sqlalchemy.connector: conf.dbmsConnector = sqlalchemy else: try: conf.dbmsConnector.connect() except NameError: pass else: conf.dbmsConnector.connect() if handler.checkDbms(): if kb.resolutionDbms: conf.dbmsHandler = max(_ for _ in items if _[0] == kb.resolutionDbms)[2]() else: conf.dbmsHandler = handler conf.dbmsHandler._dbms = dbms break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ (DBMS.MYSQL, MYSQL_ALIASES, MySQLMap, MySQLConn), (DBMS.ORACLE, ORACLE_ALIASES, OracleMap, OracleConn), (DBMS.PGSQL, PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), (DBMS.MSSQL, MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), (DBMS.SQLITE, SQLITE_ALIASES, SQLiteMap, SQLiteConn), (DBMS.ACCESS, ACCESS_ALIASES, AccessMap, AccessConn), (DBMS.FIREBIRD, FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), (DBMS.MAXDB, MAXDB_ALIASES, MaxDBMap, MaxDBConn), (DBMS.SYBASE, SYBASE_ALIASES, SybaseMap, SybaseConn), (DBMS.DB2, DB2_ALIASES, DB2Map, DB2Conn), ] _ = max(_ if (Backend.getIdentifiedDbms() or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for name, aliases, Handler, Connector in items: if conf.dbms and conf.dbms not in aliases: debugMsg = "skipping test for %s" % name logger.debug(debugMsg) continue handler = Handler() conf.dbmsConnector = Connector() if conf.direct: logger.debug("forcing timeout to 10 seconds") conf.timeout = 10 dialect = DBMS_DICT[name][3] sqlalchemy = SQLAlchemy(dialect=dialect) sqlalchemy.connect() if sqlalchemy.connector: conf.dbmsConnector = sqlalchemy else: conf.dbmsConnector.connect() if handler.checkDbms(): conf.dbmsHandler = handler break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ ("MySQL", MYSQL_ALIASES, MySQLMap, MySQLConn), ("Oracle", ORACLE_ALIASES, OracleMap, OracleConn), ("PostgreSQL", PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), ("Microsoft SQL Server", MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), ("SQLite", SQLITE_ALIASES, SQLiteMap, SQLiteConn), ("Microsoft Access", ACCESS_ALIASES, AccessMap, AccessConn), ("Firebird", FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), ("SAP MaxDB", MAXDB_ALIASES, MaxDBMap, MaxDBConn), ("Sybase", SYBASE_ALIASES, SybaseMap, SybaseConn), ("IBM DB2", DB2_ALIASES, DB2Map, DB2Conn), ] _ = max(_ if (Backend.getIdentifiedDbms() or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for name, aliases, Handler, Connector in items: if conf.dbms and conf.dbms not in aliases: debugMsg = "skipping test for %s" % name logger.debug(debugMsg) continue handler = Handler() conf.dbmsConnector = Connector() if conf.direct: logger.debug("forcing timeout to 10 seconds") conf.timeout = 10 conf.dbmsConnector.connect() if handler.checkDbms(): conf.dbmsHandler = handler break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ ("MySQL", MYSQL_ALIASES, MySQLMap, MySQLConn), ("Oracle", ORACLE_ALIASES, OracleMap, OracleConn), ("PostgreSQL", PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), ("Microsoft SQL Server", MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), ("SQLite", SQLITE_ALIASES, SQLiteMap, SQLiteConn), ("Microsoft Access", ACCESS_ALIASES, AccessMap, AccessConn), ("Firebird", FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), ("SAP MaxDB", MAXDB_ALIASES, MaxDBMap, MaxDBConn), ("Sybase", SYBASE_ALIASES, SybaseMap, SybaseConn), ("IBM DB2", DB2_ALIASES, DB2Map, DB2Conn) ] _ = max(_ if (Backend.getIdentifiedDbms() or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for name, aliases, Handler, Connector in items: if conf.dbms and conf.dbms not in aliases: debugMsg = "skipping test for %s" % name logger.debug(debugMsg) continue handler = Handler() conf.dbmsConnector = Connector() if conf.direct: logger.debug("forcing timeout to 10 seconds") conf.timeout = 10 conf.dbmsConnector.connect() if handler.checkDbms(): conf.dbmsHandler = handler break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ (DBMS.MYSQL, MYSQL_ALIASES, MySQLMap, MySQLConn), (DBMS.ORACLE, ORACLE_ALIASES, OracleMap, OracleConn), (DBMS.PGSQL, PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), (DBMS.MSSQL, MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), (DBMS.SQLITE, SQLITE_ALIASES, SQLiteMap, SQLiteConn), (DBMS.ACCESS, ACCESS_ALIASES, AccessMap, AccessConn), (DBMS.FIREBIRD, FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), (DBMS.MAXDB, MAXDB_ALIASES, MaxDBMap, MaxDBConn), (DBMS.SYBASE, SYBASE_ALIASES, SybaseMap, SybaseConn), (DBMS.DB2, DB2_ALIASES, DB2Map, DB2Conn), (DBMS.HSQLDB, HSQLDB_ALIASES, HSQLDBMap, HSQLDBConn), (DBMS.H2, H2_ALIASES, H2Map, H2Conn), (DBMS.INFORMIX, INFORMIX_ALIASES, InformixMap, InformixConn), ] _ = max(_ if (conf.get("dbms") or Backend.getIdentifiedDbms() or kb.heuristicExtendedDbms or "").lower() in _[1] else () for _ in items) if _: items.remove(_) items.insert(0, _) for dbms, aliases, Handler, Connector in items: if conf.forceDbms: if conf.forceDbms.lower() not in aliases: continue else: kb.dbms = conf.dbms = conf.forceDbms = dbms if kb.dbmsFilter: if dbms not in kb.dbmsFilter: continue handler = Handler() conf.dbmsConnector = Connector() if conf.direct: exception = None dialect = DBMS_DICT[dbms][3] if dialect: try: sqlalchemy = SQLAlchemy(dialect=dialect) sqlalchemy.connect() if sqlalchemy.connector: conf.dbmsConnector = sqlalchemy except Exception as ex: exception = ex if not dialect or exception: try: conf.dbmsConnector.connect() except Exception as ex: if exception: raise exception else: if not isinstance(ex, NameError): raise else: msg = "support for direct connection to '%s' is not available. " % dbms msg += "Please rerun with '--dependencies'" raise SqlmapConnectionException(msg) if conf.forceDbms == dbms or handler.checkDbms(): if kb.resolutionDbms: conf.dbmsHandler = max(_ for _ in items if _[0] == kb.resolutionDbms)[2]() conf.dbmsHandler._dbms = kb.resolutionDbms else: conf.dbmsHandler = handler conf.dbmsHandler._dbms = dbms break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
injection.conf.optimize = conf.optimize if conf.beep or conf.realTest: beep() # There is no need to perform this test for other # <where> tags break if injectable is True: # There is no need to perform this test with others # boundaries break # Reset forced back-end DBMS value Backend.flushForcedDbms() except KeyboardInterrupt: warnMsg = "user aborted during detection phase" logger.warn(warnMsg) message = "How do you want to proceed? [(S)kip current test/(e)nd detection phase/(n)ext parameter/(q)uit]" choice = readInput(message, default="S", checkBatch=False) if choice[0] in ("s", "S"): pass elif choice[0] in ("n", "N"): return None elif choice[0] in ("e", "E"): kb.endDetection = True elif choice[0] in ("q", "Q"):
process = execute(conf.alert, shell=True) process.wait() kb.alerted = True # There is no need to perform this test for other # <where> tags break if injectable is True: kb.vulnHosts.add(conf.hostname) break # Reset forced back-end DBMS value Backend.flushForcedDbms() except KeyboardInterrupt: warnMsg = "user aborted during detection phase" logger.warn(warnMsg) message = "How do you want to proceed? [(S)kip current test/(e)nd detection phase/(n)ext parameter/(q)uit]" choice = readInput(message, default="S", checkBatch=False) if choice[0] in ("s", "S"): pass elif choice[0] in ("n", "N"): return None elif choice[0] in ("e", "E"): kb.endDetection = True elif choice[0] in ("q", "Q"):
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ (DBMS.MYSQL, MYSQL_ALIASES, MySQLMap, MySQLConn), (DBMS.ORACLE, ORACLE_ALIASES, OracleMap, OracleConn), (DBMS.PGSQL, PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), (DBMS.MSSQL, MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), (DBMS.SQLITE, SQLITE_ALIASES, SQLiteMap, SQLiteConn), (DBMS.ACCESS, ACCESS_ALIASES, AccessMap, AccessConn), (DBMS.FIREBIRD, FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), (DBMS.MAXDB, MAXDB_ALIASES, MaxDBMap, MaxDBConn), (DBMS.SYBASE, SYBASE_ALIASES, SybaseMap, SybaseConn), (DBMS.DB2, DB2_ALIASES, DB2Map, DB2Conn), (DBMS.HSQLDB, HSQLDB_ALIASES, HSQLDBMap, HSQLDBConn), (DBMS.INFORMIX, INFORMIX_ALIASES, InformixMap, InformixConn), ] _ = max(_ if (Backend.getIdentifiedDbms() or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for dbms, aliases, Handler, Connector in items: if conf.dbms and conf.dbms.lower() != dbms and conf.dbms.lower() not in aliases: debugMsg = "skipping test for %s" % dbms logger.debug(debugMsg) continue handler = Handler() conf.dbmsConnector = Connector() if conf.direct: dialect = DBMS_DICT[dbms][3] if dialect: sqlalchemy = SQLAlchemy(dialect=dialect) sqlalchemy.connect() if sqlalchemy.connector: conf.dbmsConnector = sqlalchemy else: try: conf.dbmsConnector.connect() except NameError: pass else: conf.dbmsConnector.connect() if handler.checkDbms(): if kb.resolutionDbms: conf.dbmsHandler = max(_ for _ in items if _[0] == kb.resolutionDbms)[2]() else: conf.dbmsHandler = handler break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ (DBMS.MYSQL, MYSQL_ALIASES, MySQLMap, MySQLConn), (DBMS.ORACLE, ORACLE_ALIASES, OracleMap, OracleConn), (DBMS.PGSQL, PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), (DBMS.MSSQL, MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), (DBMS.SQLITE, SQLITE_ALIASES, SQLiteMap, SQLiteConn), (DBMS.ACCESS, ACCESS_ALIASES, AccessMap, AccessConn), (DBMS.FIREBIRD, FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), (DBMS.MAXDB, MAXDB_ALIASES, MaxDBMap, MaxDBConn), (DBMS.SYBASE, SYBASE_ALIASES, SybaseMap, SybaseConn), (DBMS.DB2, DB2_ALIASES, DB2Map, DB2Conn), (DBMS.HSQLDB, HSQLDB_ALIASES, HSQLDBMap, HSQLDBConn), (DBMS.INFORMIX, INFORMIX_ALIASES, InformixMap, InformixConn), ] _ = max(_ if (conf.get("dbms") or Backend.getIdentifiedDbms() or kb.heuristicExtendedDbms or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for dbms, aliases, Handler, Connector in items: handler = Handler() conf.dbmsConnector = Connector() if conf.direct: dialect = DBMS_DICT[dbms][3] if dialect: sqlalchemy = SQLAlchemy(dialect=dialect) sqlalchemy.connect() if sqlalchemy.connector: conf.dbmsConnector = sqlalchemy else: try: conf.dbmsConnector.connect() except NameError: pass else: conf.dbmsConnector.connect() if handler.checkDbms(): if kb.resolutionDbms: conf.dbmsHandler = max(_ for _ in items if _[0] == kb.resolutionDbms)[2]() else: conf.dbmsHandler = handler conf.dbmsHandler._dbms = dbms break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()
def setHandler(): """ Detect which is the target web application back-end database management system. """ items = [ (DBMS.MYSQL, MYSQL_ALIASES, MySQLMap, MySQLConn), (DBMS.ORACLE, ORACLE_ALIASES, OracleMap, OracleConn), (DBMS.PGSQL, PGSQL_ALIASES, PostgreSQLMap, PostgreSQLConn), (DBMS.MSSQL, MSSQL_ALIASES, MSSQLServerMap, MSSQLServerConn), (DBMS.SQLITE, SQLITE_ALIASES, SQLiteMap, SQLiteConn), (DBMS.ACCESS, ACCESS_ALIASES, AccessMap, AccessConn), (DBMS.FIREBIRD, FIREBIRD_ALIASES, FirebirdMap, FirebirdConn), (DBMS.MAXDB, MAXDB_ALIASES, MaxDBMap, MaxDBConn), (DBMS.SYBASE, SYBASE_ALIASES, SybaseMap, SybaseConn), (DBMS.DB2, DB2_ALIASES, DB2Map, DB2Conn), (DBMS.HSQLDB, HSQLDB_ALIASES, HSQLDBMap, HSQLDBConn), (DBMS.H2, H2_ALIASES, H2Map, H2Conn), (DBMS.INFORMIX, INFORMIX_ALIASES, InformixMap, InformixConn), ] _ = max(_ if (conf.get("dbms") or Backend.getIdentifiedDbms() or kb.heuristicExtendedDbms or "").lower() in _[1] else None for _ in items) if _: items.remove(_) items.insert(0, _) for dbms, aliases, Handler, Connector in items: if conf.forceDbms: if conf.forceDbms.lower() not in aliases: continue else: kb.dbms = conf.dbms = conf.forceDbms = dbms if kb.dbmsFilter: if dbms not in kb.dbmsFilter: continue handler = Handler() conf.dbmsConnector = Connector() if conf.direct: exception = None dialect = DBMS_DICT[dbms][3] if dialect: try: sqlalchemy = SQLAlchemy(dialect=dialect) sqlalchemy.connect() if sqlalchemy.connector: conf.dbmsConnector = sqlalchemy except Exception as ex: exception = ex if not dialect or exception: try: conf.dbmsConnector.connect() except Exception as ex: if exception: raise exception else: if not isinstance(ex, NameError): raise else: msg = "support for direct connection to '%s' is not available. " % dbms msg += "Please rerun with '--dependencies'" raise SqlmapConnectionException(msg) if conf.forceDbms == dbms or handler.checkDbms(): if kb.resolutionDbms: conf.dbmsHandler = max(_ for _ in items if _[0] == kb.resolutionDbms)[2]() conf.dbmsHandler._dbms = kb.resolutionDbms else: conf.dbmsHandler = handler conf.dbmsHandler._dbms = dbms break else: conf.dbmsConnector = None # At this point back-end DBMS is correctly fingerprinted, no need # to enforce it anymore Backend.flushForcedDbms()