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Refactoring of funcionality for finding out if stacking is available

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This commit is contained in:
Miroslav Stampar 2013-02-13 09:57:16 +01:00
parent 8b4f72322a
commit dc41484b3f
8 changed files with 46 additions and 30 deletions
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18
lib/core/common.py
View File

@ -2399,6 +2399,24 @@ def isTechniqueAvailable(technique):
else:
return getTechniqueData(technique) is not None
def isStackingAvailable():
"""
Returns True whether techniques using stacking are available
"""
retVal = False
if PAYLOAD.TECHNIQUE.STACKED in kb.injection.data:
retVal = True
else:
for technique in getPublicTypeMembers(PAYLOAD.TECHNIQUE, True):
_ = getTechniqueData(technique)
if _ and "stacked" in _["title"].lower():
retVal = True
break
return retVal
def isInferenceAvailable():
"""
Returns True whether techniques using inference technique are available

9
lib/takeover/abstraction.py
View File

@ -9,6 +9,7 @@ from extra.safe2bin.safe2bin import safechardecode
from lib.core.common import dataToStdout
from lib.core.common import Backend
from lib.core.common import getSQLSnippet
from lib.core.common import isStackingAvailable
from lib.core.common import isTechniqueAvailable
from lib.core.common import readInput
from lib.core.data import conf
@ -39,7 +40,7 @@ class Abstraction(Web, UDF, Xp_cmdshell):
Xp_cmdshell.__init__(self)
def execCmd(self, cmd, silent=False):
if self.webBackdoorUrl and not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if self.webBackdoorUrl and not isStackingAvailable():
self.webBackdoorRunCmd(cmd)
elif Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL):
@ -55,7 +56,7 @@ class Abstraction(Web, UDF, Xp_cmdshell):
def evalCmd(self, cmd, first=None, last=None):
retVal = None
if self.webBackdoorUrl and not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if self.webBackdoorUrl and not isStackingAvailable():
retVal = self.webBackdoorRunCmd(cmd)
elif Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL):
@ -92,7 +93,7 @@ class Abstraction(Web, UDF, Xp_cmdshell):
self.execCmd(cmd)
def shell(self):
if self.webBackdoorUrl and not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if self.webBackdoorUrl and not isStackingAvailable():
infoMsg = "calling OS shell. To quit type "
infoMsg += "'x' or 'q' and press ENTER"
logger.info(infoMsg)
@ -146,7 +147,7 @@ class Abstraction(Web, UDF, Xp_cmdshell):
if not conf.dbmsCred:
return
if not conf.direct and not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if not conf.direct and not isStackingAvailable():
errMsg = "stacked queries is not supported hence sqlmap cannot "
errMsg += "execute statements as another user. The execution "
errMsg += "will continue and the DBMS credentials provided "

3
lib/takeover/udf.py
View File

@ -10,6 +10,7 @@ import os
from lib.core.agent import agent
from lib.core.common import dataToStdout
from lib.core.common import Backend
from lib.core.common import isStackingAvailable
from lib.core.common import isTechniqueAvailable
from lib.core.common import readInput
from lib.core.data import conf
@ -188,7 +189,7 @@ class UDF:
logger.error(errMsg)
return
if not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and not conf.direct:
if not isStackingAvailable() and not conf.direct:
errMsg = "UDF injection feature requires stacked queries SQL injection"
logger.error(errMsg)
return

3
plugins/dbms/mysql/takeover.py
View File

@ -9,6 +9,7 @@ import re
from lib.core.agent import agent
from lib.core.common import Backend
from lib.core.common import isStackingAvailable
from lib.core.common import isTechniqueAvailable
from lib.core.common import normalizePath
from lib.core.common import ntToPosixSlashes
@ -100,7 +101,7 @@ class Takeover(GenericTakeover):
logger.debug("keeping existing UDF '%s' as requested" % udf)
def uncPathRequest(self):
if not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if not isStackingAvailable():
query = agent.prefixQuery("AND LOAD_FILE('%s')" % self.uncPath)
query = agent.suffixQuery(query)
payload = agent.payload(newValue=query)

12
plugins/generic/custom.py
View File

@ -12,6 +12,7 @@ from lib.core.common import dataToStdout
from lib.core.common import getPublicTypeMembers
from lib.core.common import getSQLSnippet
from lib.core.common import getTechniqueData
from lib.core.common import isStackingAvailable
from lib.core.common import isTechniqueAvailable
from lib.core.convert import utf8decode
from lib.core.data import conf
@ -41,15 +42,6 @@ class Custom:
sqlType = sqlTitle
break
stacked = isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED)
if not stacked:
for technique in getPublicTypeMembers(PAYLOAD.TECHNIQUE, True):
_ = getTechniqueData(technique)
if _ and "stacked" in _["title"].lower():
stacked = True
break
if "OPENROWSET" not in query.upper() and (not sqlType or "SELECT" in sqlType):
infoMsg = "fetching %s query output: '%s'" % (sqlType if sqlType is not None else "SQL", query)
logger.info(infoMsg)
@ -57,7 +49,7 @@ class Custom:
output = inject.getValue(query, fromUser=True)
return output
elif not stacked and not conf.direct:
elif not isStackingAvailable() and not conf.direct:
warnMsg = "execution of custom SQL queries is only "
warnMsg += "available when stacked queries are supported"
logger.warn(warnMsg)

9
plugins/generic/filesystem.py
View File

@ -14,6 +14,7 @@ from lib.core.common import decloakToTemp
from lib.core.common import decodeHexValue
from lib.core.common import isNumPosStrValue
from lib.core.common import isListLike
from lib.core.common import isStackingAvailable
from lib.core.common import isTechniqueAvailable
from lib.core.common import readInput
from lib.core.data import conf
@ -189,8 +190,8 @@ class Filesystem:
fileContent = None
kb.fileReadMode = True
if conf.direct or isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if conf.direct or isStackingAvailable():
if isStackingAvailable():
debugMsg = "going to read the file with stacked query SQL "
debugMsg += "injection technique"
logger.debug(debugMsg)
@ -260,8 +261,8 @@ class Filesystem:
if localFile.endswith('_'):
localFile = decloakToTemp(localFile)
if conf.direct or isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED):
if conf.direct or isStackingAvailable():
if isStackingAvailable():
debugMsg = "going to upload the %s file with " % fileType
debugMsg += "stacked query SQL injection technique"
logger.debug(debugMsg)

3
plugins/generic/misc.py
View File

@ -10,6 +10,7 @@ import re
from lib.core.common import Backend
from lib.core.common import hashDBWrite
from lib.core.common import isStackingAvailable
from lib.core.common import isTechniqueAvailable
from lib.core.common import normalizePath
from lib.core.common import ntToPosixSlashes
@ -125,7 +126,7 @@ class Miscellaneous:
self.delRemoteFile(self.webStagerFilePath)
self.delRemoteFile(self.webBackdoorFilePath)
if not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and not conf.direct:
if not isStackingAvailable() and not conf.direct:
return
if Backend.isOs(OS.WINDOWS):

19
plugins/generic/takeover.py
View File

@ -8,6 +8,7 @@ See the file 'doc/COPYING' for copying permission
import os
from lib.core.common import Backend
from lib.core.common import isStackingAvailable
from lib.core.common import isTechniqueAvailable
from lib.core.common import readInput
from lib.core.common import runningAsAdmin
@ -41,9 +42,9 @@ class Takeover(Abstraction, Metasploit, ICMPsh, Registry, Miscellaneous):
Abstraction.__init__(self)
def osCmd(self):
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) or conf.direct:
if isStackingAvailable() or conf.direct:
web = False
elif not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and Backend.isDbms(DBMS.MYSQL):
elif not isStackingAvailable() and Backend.isDbms(DBMS.MYSQL):
infoMsg = "going to use a web backdoor for command execution"
logger.info(infoMsg)
@ -63,9 +64,9 @@ class Takeover(Abstraction, Metasploit, ICMPsh, Registry, Miscellaneous):
self.cleanup(web=web)
def osShell(self):
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) or conf.direct:
if isStackingAvailable() or conf.direct:
web = False
elif not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and Backend.isDbms(DBMS.MYSQL):
elif not isStackingAvailable() and Backend.isDbms(DBMS.MYSQL):
infoMsg = "going to use a web backdoor for command prompt"
logger.info(infoMsg)
@ -153,7 +154,7 @@ class Takeover(Abstraction, Metasploit, ICMPsh, Registry, Miscellaneous):
if Backend.getIdentifiedDbms() in (DBMS.MYSQL, DBMS.PGSQL):
self.sysUdfs.pop("sys_bineval")
if isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) or conf.direct:
if isStackingAvailable() or conf.direct:
web = False
self.getRemoteTempPath()
@ -202,7 +203,7 @@ class Takeover(Abstraction, Metasploit, ICMPsh, Registry, Miscellaneous):
self.uploadIcmpshSlave(web=web)
self.icmpPwn()
elif not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and Backend.isDbms(DBMS.MYSQL):
elif not isStackingAvailable() and Backend.isDbms(DBMS.MYSQL):
web = True
infoMsg = "going to use a web backdoor to establish the tunnel"
@ -250,7 +251,7 @@ class Takeover(Abstraction, Metasploit, ICMPsh, Registry, Miscellaneous):
errMsg += "relay attack"
raise SqlmapUnsupportedDBMSException(errMsg)
if not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and not conf.direct:
if not isStackingAvailable() and not conf.direct:
if Backend.getIdentifiedDbms() in (DBMS.PGSQL, DBMS.MSSQL):
errMsg = "on this back-end DBMS it is only possible to "
errMsg += "perform the SMB relay attack if stacked "
@ -292,7 +293,7 @@ class Takeover(Abstraction, Metasploit, ICMPsh, Registry, Miscellaneous):
self.smb()
def osBof(self):
if not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and not conf.direct:
if not isStackingAvailable() and not conf.direct:
return
if not Backend.isDbms(DBMS.MSSQL) or not Backend.isVersionWithin(("2000", "2005")):
@ -328,7 +329,7 @@ class Takeover(Abstraction, Metasploit, ICMPsh, Registry, Miscellaneous):
raise SqlmapUndefinedMethod(errMsg)
def _regInit(self):
if not isTechniqueAvailable(PAYLOAD.TECHNIQUE.STACKED) and not conf.direct:
if not isStackingAvailable() and not conf.direct:
return
self.checkDbmsOs()