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Ahead with UNION exploitation after UNION test moved to detection phase - a lot to do yet.

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This commit is contained in:
Bernardo Damele 2011-01-12 00:47:39 +00:00
parent 873951ab92
commit 8bdb7ec58c
6 changed files with 16 additions and 65 deletions
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9
lib/controller/checks.py
View File

@ -280,6 +280,7 @@ def checkSqlInjection(place, parameter, value):
# For each test's <where>
for where in test.where:
templatePayload = None
vector = None
# Threat the parameter original value according to the
# test's <where> tag
@ -380,7 +381,7 @@ def checkSqlInjection(place, parameter, value):
configUnion(test.request.char, test.request.columns)
dbmsToUnescape = dbms if dbms is not None else injection.dbms
reqPayload, unionVector = unionTest(comment, place, parameter, value, prefix, suffix, dbmsToUnescape)
reqPayload, vector = unionTest(comment, place, parameter, value, prefix, suffix, dbmsToUnescape)
if isinstance(reqPayload, basestring):
infoMsg = "%s parameter '%s' is '%s' injectable" % (place, parameter, title)
@ -405,17 +406,15 @@ def checkSqlInjection(place, parameter, value):
injection.suffix = suffix
injection.clause = clause
if "vector" in test and test.vector is not None:
if vector is None and "vector" in test and test.vector is not None:
vector = "%s%s" % (test.vector, comment)
else:
vector = None
# Feed with test details every time a test is successful
injection.data[stype] = advancedDict()
injection.data[stype].title = title
injection.data[stype].payload = agent.removePayloadDelimiters(reqPayload, False)
injection.data[stype].where = where
injection.data[stype].vector = agent.cleanupPayload(vector, unionVector=unionVector)
injection.data[stype].vector = vector
injection.data[stype].comment = comment
injection.data[stype].matchRatio = kb.matchRatio
injection.data[stype].templatePayload = templatePayload

15
lib/core/agent.py
View File

@ -108,7 +108,6 @@ class Agent:
retValue = paramString.replace("%s=%s" % (parameter, origValue),
"%s=%s" % (parameter, self.addPayloadDelimiters(newValue)))
# print "retValue:", retValue
return retValue
def fullPayload(self, query):
@ -180,7 +179,7 @@ class Agent:
return string.rstrip()
def cleanupPayload(self, payload, origvalue=None, unionVector=None):
def cleanupPayload(self, payload, origvalue=None, unionVector=None, query=None):
if payload is None:
return
@ -199,6 +198,9 @@ class Agent:
payload = payload.replace("[SLEEPTIME]", str(conf.timeSec))
payload = payload.replace("[UNION]", str(unionVector))
if query is not None:
payload = payload.replace("[QUERY]", query.lstrip())
if origvalue is not None:
payload = payload.replace("[ORIGVALUE]", origvalue)
@ -220,11 +222,10 @@ class Agent:
inferenceQuery = queries[kb.misc.testedDbms].inference.query
payload = payload.replace("[INFERENCE]", inferenceQuery)
# NOTE: Leave this commented for the time being
#else:
# errMsg = "invalid usage of inference payload without "
# errMsg += "knowledge of underlying DBMS"
# raise sqlmapNoneDataException, errMsg
else:
errMsg = "invalid usage of inference payload without "
errMsg += "knowledge of underlying DBMS"
raise sqlmapNoneDataException, errMsg
return payload

43
lib/core/session.py
View File

@ -215,9 +215,6 @@ def setUnion(comment=None, count=None, position=None, negative=False, char=None,
if negative:
kb.unionNegative = True
if payload:
kb.unionTest = payload
def setRemoteTempPath():
condition = (
not kb.resumedQueries or ( kb.resumedQueries.has_key(conf.url) and
@ -390,46 +387,6 @@ def resumeConfKb(expression, url, value):
kb.brute.columns.append((db, table, colName, colType))
elif expression == "Union comment" and url == conf.url:
kb.unionComment = unSafeFormatString(value[:-1])
logMsg = "resuming union comment "
logMsg += "'%s' from session file" % kb.unionComment
logger.info(logMsg)
elif expression == "Union count" and url == conf.url:
kb.unionCount = int(value[:-1])
logMsg = "resuming union count "
logMsg += "%s from session file" % kb.unionCount
logger.info(logMsg)
elif expression == "Union position" and url == conf.url:
kb.unionPosition = int(value[:-1])
logMsg = "resuming union position "
logMsg += "%s from session file" % kb.unionPosition
logger.info(logMsg)
elif expression == "Union negative" and url == conf.url:
kb.unionNegative = True if value[:-1] == "Yes" else False
logMsg = "resuming union negative from session file"
logger.info(logMsg)
elif expression == "Union char" and url == conf.url:
conf.uChar = value[:-1]
logMsg = "resuming union char %s from session file" % conf.uChar
logger.info(logMsg)
elif expression == "Union payload" and url == conf.url:
kb.unionTest = value[:-1]
logMsg = "resuming union payload "
logMsg += "%s from session file" % kb.unionTest
logger.info(logMsg)
elif expression == "Remote temp path" and url == conf.url:
conf.tmpPath = unSafeFormatString(value[:-1])

2
lib/techniques/inband/union/test.py
View File

@ -52,7 +52,7 @@ def __unionPosition(comment, place, parameter, value, prefix, suffix, dbms, coun
if resultPage and randQuery in resultPage and " UNION ALL SELECT " not in resultPage:
setUnion(position=exprPosition)
validPayload = payload
unionVector = agent.forgeInbandQuery("[PAYLOAD]", exprPosition, count=count, comment=comment, prefix=prefix, suffix=suffix)
unionVector = agent.forgeInbandQuery("[QUERY]", exprPosition, count=count, comment=comment, prefix=prefix, suffix=suffix)
if where == 1:
# Prepare expression with delimiters

6
lib/techniques/inband/union/use.py
View File

@ -211,12 +211,10 @@ def unionUse(expression, direct=False, unescape=True, resetCounter=False, nullCh
else:
# Forge the inband SQL injection request
query = agent.forgeInbandQuery(expression, nullChar=nullChar)
query = unescaper.unescape(expression)
query = agent.cleanupPayload(kb.injection.data[PAYLOAD.TECHNIQUE.UNION].vector, query=query)
payload = agent.payload(newValue=query)
debugMsg = "query: %s" % query
logger.debug(debugMsg)
# Perform the request
resultPage, _ = Request.queryPage(payload, content=True)
reqCount += 1

4
plugins/generic/enumeration.py
View File

@ -52,7 +52,6 @@ from lib.request import inject
from lib.request.connect import Connect as Request
from lib.techniques.brute.use import columnExists
from lib.techniques.brute.use import tableExists
from lib.techniques.inband.union.test import unionTest
from lib.utils.hash import attackDumpedTable
from lib.utils.hash import attackCachedUsersPasswords
@ -87,9 +86,6 @@ class Enumeration:
infoMsg = "fetching banner"
logger.info(infoMsg)
if conf.unionTest:
conf.dumper.technic("inband injection payload", unionTest())
query = queries[kb.dbms].banner.query
kb.data.banner = inject.getValue(query)
bannerParser(kb.data.banner)