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Removing ugly duplicating of \ (hidden bugs came - e.g. DNS exfiltration)

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This commit is contained in:
Miroslav Stampar
2015-10-15 16:00:59 +02:00
parent 956047b43f
commit f793a26095
1 changed files with 3 additions and 3 deletions
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6
lib/core/agent.py
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@@ -187,12 +187,12 @@ class Agent(object):
if origValue: if origValue:
regex = r"(\A|\b)%s=%s%s" % (re.escape(parameter), re.escape(origValue), r"(\Z|\b)" if origValue[-1].isalnum() else "") regex = r"(\A|\b)%s=%s%s" % (re.escape(parameter), re.escape(origValue), r"(\Z|\b)" if origValue[-1].isalnum() else "")
retVal = _(regex, "%s=%s" % (parameter, self.addPayloadDelimiters(newValue.replace("\\", "\\\\"))), paramString) retVal = _(regex, "%s=%s" % (parameter, self.addPayloadDelimiters(newValue)), paramString)
else: else:
retVal = _(r"(\A|\b)%s=%s(\Z|%s|%s|\s)" % (re.escape(parameter), re.escape(origValue), DEFAULT_GET_POST_DELIMITER, DEFAULT_COOKIE_DELIMITER), "%s=%s\g<2>" % (parameter, self.addPayloadDelimiters(newValue.replace("\\", "\\\\"))), paramString) retVal = _(r"(\A|\b)%s=%s(\Z|%s|%s|\s)" % (re.escape(parameter), re.escape(origValue), DEFAULT_GET_POST_DELIMITER, DEFAULT_COOKIE_DELIMITER), "%s=%s\g<2>" % (parameter, self.addPayloadDelimiters(newValue)), paramString)
if retVal == paramString and urlencode(parameter) != parameter: if retVal == paramString and urlencode(parameter) != parameter:
retVal = _(r"(\A|\b)%s=%s" % (re.escape(urlencode(parameter)), re.escape(origValue)), "%s=%s" % (urlencode(parameter), self.addPayloadDelimiters(newValue.replace("\\", "\\\\"))), paramString) retVal = _(r"(\A|\b)%s=%s" % (re.escape(urlencode(parameter)), re.escape(origValue)), "%s=%s" % (urlencode(parameter), self.addPayloadDelimiters(newValue)), paramString)
if retVal: if retVal:
retVal = retVal.replace(BOUNDARY_BACKSLASH_MARKER, '\\') retVal = retVal.replace(BOUNDARY_BACKSLASH_MARKER, '\\')