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one more level of defense against user himself

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This commit is contained in:
Miroslav Stampar 2012-01-07 17:16:14 +00:00
parent a675c88894
commit 2b5e429dc2
2 changed files with 7 additions and 3 deletions
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7
lib/core/common.py
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@ -78,6 +78,7 @@ from lib.core.optiondict import optDict
from lib.core.settings import BIGARRAY_CHUNK_LENGTH from lib.core.settings import BIGARRAY_CHUNK_LENGTH
from lib.core.settings import DEFAULT_COOKIE_DELIMITER from lib.core.settings import DEFAULT_COOKIE_DELIMITER
from lib.core.settings import DEFAULT_GET_POST_DELIMITER from lib.core.settings import DEFAULT_GET_POST_DELIMITER
from lib.core.settings import DUMMY_USER_INJECTION
from lib.core.settings import INFERENCE_UNKNOWN_CHAR from lib.core.settings import INFERENCE_UNKNOWN_CHAR
from lib.core.settings import UNICODE_ENCODING from lib.core.settings import UNICODE_ENCODING
from lib.core.settings import DBMS_DICT from lib.core.settings import DBMS_DICT
@ -675,13 +676,13 @@ def paramToDict(place, parameters=None):
if condition: if condition:
testableParameters[parameter] = "=".join(elem[1:]) testableParameters[parameter] = "=".join(elem[1:])
if testableParameters[parameter].strip(DUMMY_SQL_INJECTION_CHARS) != testableParameters[parameter]\ if testableParameters[parameter].strip(DUMMY_SQL_INJECTION_CHARS) != testableParameters[parameter]\
or re.search(r'\A9{3,}', testableParameters[parameter]): or re.search(r'\A9{3,}', testableParameters[parameter]) or re.search(DUMMY_USER_INJECTION, testableParameters[parameter]):
errMsg = "you have provided tainted parameter values " errMsg = "you have provided tainted parameter values "
errMsg += "(%s) with most probably leftover " % element errMsg += "('%s') with most probably leftover " % element
errMsg += "chars from manual sql injection " errMsg += "chars from manual sql injection "
errMsg += "tests (%s) or non-valid numerical value. " % DUMMY_SQL_INJECTION_CHARS errMsg += "tests (%s) or non-valid numerical value. " % DUMMY_SQL_INJECTION_CHARS
errMsg += "Please, always use only valid parameter values " errMsg += "Please, always use only valid parameter values "
errMsg += "so sqlmap could be able to do a valid run." errMsg += "so sqlmap could be able to properly run"
raise sqlmapSyntaxException, errMsg raise sqlmapSyntaxException, errMsg
else: else:
root = ET.XML(parameters) root = ET.XML(parameters)

3
lib/core/settings.py
View File

@ -373,6 +373,9 @@ ITOA64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
# Chars used to quickly distinguish if the user provided tainted parameter values # Chars used to quickly distinguish if the user provided tainted parameter values
DUMMY_SQL_INJECTION_CHARS = ";()'" DUMMY_SQL_INJECTION_CHARS = ";()'"
# Simple check against dummy users
DUMMY_USER_INJECTION = "(?i)[^\w](AND|OR)\s+[^\s]+[=><]"
# Extensions skipped by crawler # Extensions skipped by crawler
CRAWL_EXCLUDE_EXTENSIONS = ("gif","jpg","jar","tif","bmp","war","ear","mpg","wmv","mpeg","scm","iso","dmp","dll","cab","so","avi","bin","exe","iso","tar","png","pdf","ps","mp3","zip","rar","gz") CRAWL_EXCLUDE_EXTENSIONS = ("gif","jpg","jar","tif","bmp","war","ear","mpg","wmv","mpeg","scm","iso","dmp","dll","cab","so","avi","bin","exe","iso","tar","png","pdf","ps","mp3","zip","rar","gz")