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Adding a dummy (auxiliary) XSS check

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This commit is contained in:
Miroslav Stampar
2014-10-01 13:31:48 +02:00
parent 4d23744430
commit 8c9014c39f
3 changed files with 20 additions and 2 deletions
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4
lib/core/common.py
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@@ -2931,7 +2931,7 @@ def removeReflectiveValues(content, payload, suppressWarning=False):
retVal = content
if all([content, payload]) and isinstance(content, unicode) and kb.reflectiveMechanism:
if all([content, payload]) and isinstance(content, unicode) and kb.reflectiveMechanism and not kb.heuristicMode:
def _(value):
while 2 * REFLECTED_REPLACEMENT_REGEX in value:
value = value.replace(2 * REFLECTED_REPLACEMENT_REGEX, REFLECTED_REPLACEMENT_REGEX)
@@ -2966,7 +2966,7 @@ def removeReflectiveValues(content, payload, suppressWarning=False):
regex = REFLECTED_REPLACEMENT_REGEX.join(parts[1:])
retVal = re.sub(r"(?i)\b%s\b" % regex, REFLECTED_VALUE_MARKER, retVal)
if retVal != content and not kb.heuristicMode:
if retVal != content:
kb.reflectiveCounters[REFLECTIVE_COUNTER.HIT] += 1
if not suppressWarning:
warnMsg = "reflective value(s) found and filtering out"

3
lib/core/settings.py
View File

@@ -509,6 +509,9 @@ DNS_BOUNDARIES_ALPHABET = re.sub("[a-fA-F]", "", string.ascii_letters)
# Alphabet used for heuristic checks
HEURISTIC_CHECK_ALPHABET = ('"', '\'', ')', '(', '[', ']', ',', '.')
# String used for dummy XSS check of a tested parameter value
DUMMY_XSS_CHECK_APPENDIX = "<'\">"
# Connection chunk size (processing large responses in chunks to avoid MemoryError crashes - e.g. large table dump in full UNION injections)
MAX_CONNECTION_CHUNK_SIZE = 10 * 1024 * 1024