sqlmap/tamper/overlongutf8.py

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2014-08-28 13:58:22 +04:00
#!/usr/bin/env python
"""
Copyright (c) 2006-2014 sqlmap developers (http://sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""
import string
from lib.core.enums import PRIORITY
__priority__ = PRIORITY.LOWEST
def dependencies():
pass
def tamper(payload, **kwargs):
"""
Converts all characters in a given payload (not processing already
encoded)
Reference: https://www.acunetix.com/vulnerabilities/unicode-transformation-issues/
>>> tamper('SELECT FIELD FROM TABLE WHERE 2>1')
'SELECT%C0%AAFIELD%C0%AAFROM%C0%AATABLE%C0%AAWHERE%C0%AA2%C0%BE1'
"""
retVal = payload
if payload:
retVal = ""
i = 0
while i < len(payload):
if payload[i] == '%' and (i < len(payload) - 2) and payload[i + 1:i + 2] in string.hexdigits and payload[i + 2:i + 3] in string.hexdigits:
retVal += payload[i:i + 3]
i += 3
else:
if payload[i] not in (string.ascii_letters + string.digits):
retVal += "%%C0%%%.2X" % (0x8A | ord(payload[i]))
else:
retVal += payload[i]
i += 1
return retVal