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Important bug fix.

Browse Source 
Minor code restyling.
This commit is contained in:
Bernardo Damele 2011-01-13 09:41:55 +00:00
parent 1b3717c79c
commit be6e2d6a31
4 changed files with 14 additions and 14 deletions
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2
lib/controller/checks.py
View File

@ -395,7 +395,7 @@ def checkSqlInjection(place, parameter, value):
# Overwrite 'where' because it can differ
# in unionTest()'s vector (1 or 2)
where = vector[5]
where = vector[6]
# If the injection test was successful feed the injection
# object with the test's details

14
lib/core/agent.py
View File

@ -478,7 +478,7 @@ class Agent:
return concatenatedQuery
def forgeInbandQuery(self, query, exprPosition=None, count=None, comment=None, prefix=None, suffix=None, multipleUnions=None):
def forgeInbandQuery(self, query, position, count, comment, prefix, suffix, char, multipleUnions=None):
"""
Take in input an query (pseudo query) string and return its
processed UNION ALL SELECT query.
@ -501,9 +501,9 @@ class Agent:
forged within an UNION ALL SELECT statement
@type query: C{str}
@param exprPosition: it is the NULL position where it is possible
@param position: it is the NULL position where it is possible
to inject the query
@type exprPosition: C{int}
@type position: C{int}
@return: UNION ALL SELECT query string forged
@rtype: C{str}
@ -532,14 +532,14 @@ class Agent:
if element > 0:
inbandQuery += ", "
if element == exprPosition:
if element == position:
if " FROM " in query and not query.startswith("SELECT ") and "(CASE WHEN (" not in query:
conditionIndex = query.index(" FROM ")
inbandQuery += query[:conditionIndex]
else:
inbandQuery += query
else:
inbandQuery += conf.uChar
inbandQuery += char
if " FROM " in query and not query.startswith("SELECT ") and "(CASE WHEN (" not in query:
conditionIndex = query.index(" FROM ")
@ -559,10 +559,10 @@ class Agent:
if element > 0:
inbandQuery += ", "
if element == exprPosition:
if element == position:
inbandQuery += multipleUnions
else:
inbandQuery += conf.uChar
inbandQuery += char
if kb.dbms == DBMS.ORACLE:
inbandQuery += " FROM DUAL"

10
lib/techniques/inband/union/test.py
View File

@ -32,14 +32,14 @@ def __unionPosition(comment, place, parameter, value, prefix, suffix, dbms, coun
# For each column of the table (# of NULL) perform a request using
# the UNION ALL SELECT statement to test it the target url is
# affected by an exploitable inband SQL injection vulnerability
for exprPosition in range(0, count):
for position in range(0, count):
# Prepare expression with delimiters
randQuery = randomStr()
randQueryProcessed = agent.concatQuery("\'%s\'" % randQuery)
randQueryUnescaped = unescaper.unescape(randQueryProcessed, dbms=dbms)
# Forge the inband SQL injection request
query = agent.forgeInbandQuery(randQueryUnescaped, exprPosition, count=count, comment=comment, prefix=prefix, suffix=suffix)
query = agent.forgeInbandQuery(randQueryUnescaped, position, count, comment, prefix, suffix, conf.uChar)
payload = agent.payload(place=place, parameter=parameter, newValue=query, where=where)
# Perform the request
@ -47,7 +47,7 @@ def __unionPosition(comment, place, parameter, value, prefix, suffix, dbms, coun
if resultPage and randQuery in resultPage and " UNION ALL SELECT " not in resultPage:
validPayload = payload
vector = (exprPosition, count, comment, prefix, suffix, where)
vector = (position, count, comment, prefix, suffix, conf.uChar, where)
if where == 1:
# Prepare expression with delimiters
@ -56,14 +56,14 @@ def __unionPosition(comment, place, parameter, value, prefix, suffix, dbms, coun
randQueryUnescaped2 = unescaper.unescape(randQueryProcessed2, dbms=dbms)
# Confirm that it is a full inband SQL injection
query = agent.forgeInbandQuery(randQueryUnescaped, exprPosition, count=count, comment=comment, prefix=prefix, suffix=suffix, multipleUnions=randQueryUnescaped2)
query = agent.forgeInbandQuery(randQueryUnescaped, position, count, comment, prefix, suffix, conf.uChar, multipleUnions=randQueryUnescaped2)
payload = agent.payload(place=place, parameter=parameter, newValue=query, where=2)
# Perform the request
resultPage, _ = Request.queryPage(payload, place=place, content=True)
if resultPage and (randQuery not in resultPage or randQuery2 not in resultPage):
vector = (exprPosition, count, comment, prefix, suffix, 2)
vector = (position, count, comment, prefix, suffix, conf.uChar, 2)
break

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

@ -211,7 +211,7 @@ def unionUse(expression, direct=False, unescape=True, resetCounter=False, nullCh
else:
# Forge the inband SQL injection request
vector = kb.injection.data[PAYLOAD.TECHNIQUE.UNION].vector
query = agent.forgeInbandQuery(expression, exprPosition=vector[0], count=vector[1], comment=vector[2], prefix=vector[3], suffix=vector[4])
query = agent.forgeInbandQuery(expression, vector[0], vector[1], vector[2], vector[3], vector[4], vector[5])
payload = agent.payload(newValue=query)
# Perform the request