This is a small web vulnerability scanning tool made by Bi She last year. It mainly targets simple SQL injection vulnerabilities, SQL blind injection and XSS vulnerabilities. The code was read by a foreign master on github (I heard that he is one of the writers of SMAP) The source code of the two gadgets was written by myself based on the ideas in it. Below are the usage instructions and source code.
1. Instructions for use:
1. Running environment:
Linux command line interface + Python2.7
2. Program source code:
Vim scanner//Create a file named scanner
Chmod a+xscanner//Modify the file permissions to executable
3. Run the program:
Python scanner//Run file
If the target URL information is not carried, the interface will output help information to remind you of the parameters that can be entered.
Parameters include:
--h Output help information
--url Scanned URL
--data Parameters of POST request method
--cookie HTTP request header Cookie value
--user-agent HTTP request header User-Agent value
--random-agent Whether to use browser disguise
--referer The upper layer interface of the target URL
--proxy HTTP Request header proxy value
For example, scan "http://127.0.0.1/dvwa/vulnerabilities/sqli/?id=&Submit=Submit"
Python scanner--url=" http://127.0.0.1/dvwa/vulnerabilities/sqli/?id=&Submit=Submit"--cookie="security=low;PHPSESSID=menntb9b2isj7qha739ihg9of1"
The output scan results are as follows:
The results show:
There is an XSS vulnerability. The vulnerability matches the vulnerability signature library "">.XSS.<"", which is a type outside the embedded tag.
There is a SQL injection vulnerability, and the database type of the target website server is MySQL.
There is a BLIND SQL injection vulnerability.
2. Source code:
The code has been verified to run. I personally recommend using DVWA for testing.
#!-*-coding:UTF-8-*-
import optparse, random, re, string, urllib, urllib2,difflib,itertools,httplib
NAME = "Scanner for RXSS and SQLI"
AUTHOR = "Lishuze"
PREFIXES = (" ", ") ", "' ", "') ", "\"")
SUFFIXES = ("", "-- -", "#")
BOOLEAN_TESTS = ("AND %d=%d", "OR NOT (%d=%d)")
TAMPER_SQL_CHAR_POOL = ('(', ')', '\'', '"''"')
TAMPER_XSS_CHAR_POOL = ('\'', '"', '>', '<', ';')
GET, POST = "GET", "POST"
COOKIE, UA, REFERER = "Cookie", "User-Agent", "Referer"
TEXT, HTTPCODE, TITLE, HTML = xrange(4)
_headers = {}
USER_AGENTS = (
"Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Firefox/38.0",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36",
"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_7_0; en-US) AppleWebKit/534.21 (KHTML, like Gecko) Chrome/11.0.678.0 Safari/534.21",
)
XSS_PATTERNS = (
(r"<!--[^>]*%(chars)s|%(chars)s[^<]*-->","\"<!--.'.xss.'.-->\", inside the comment", None),
(r"(?s)<script[^>]*>[^<]*?'[^<']*%(chars)s|%(chars)s[^<']*'[^<]*</script>","\"<script>.'.xss.'.</script>\", enclosed by <script> tags, inside single-quotes", None),
(r'(?s)<script[^>]*>[^<]*?"[^<"]*%(chars)s|%(chars)s[^<"]*"[^<]*</script>',"'<script>.\".xss.\".</script>', enclosed by <script> tags, inside double-quotes", None),
(r"(?s)<script[^>]*>[^<]*?%(chars)s|%(chars)s[^<]*</script>","\"<script>.xss.</script>\", enclosed by <script> tags", None),
(r">[^<]*%(chars)s[^<]*(<|\Z)", "\">.xss.<\", outside of tags", r"(?s)<script.+?</script>|<!--.*?-->"),
(r"<[^>]*'[^>']*%(chars)s[^>']*'[^>]*>", "\"<.'.xss.'.>\", inside the tag, inside single-quotes", r"(?s)<script.+?</script>|<!--.*?-->"),
(r'<[^>]*"[^>"]*%(chars)s[^>"]*"[^>]*>', "'<.\".xss.\".>', inside the tag, inside double-quotes", r"(?s)<script.+?</script>|<!--.*?-->"),
(r"<[^>]*%(chars)s[^>]*>", "\"<.xss.>\", inside the tag, outside of quotes", r"(?s)<script.+?</script>|<!--.*?-->")
)
DBMS_ERRORS = {
"MySQL": (r"SQL syntax.*MySQL", r"Warning.*mysql_.*", r"valid MySQL result", r"MySqlClient\."),
"Microsoft SQL Server": (r"Driver.* SQL[\-\_\ ]*Server", r"OLE DB.* SQL Server", r"(\W|\A)SQL Server.*Driver", r"Warning.*mssql_.*", r"(\W|\A)SQL Server.*[0-9a-fA-F]{8}", r"(?s)Exception.*\WSystem\.Data\.SqlClient\.", r"(?s)Exception.*\WRoadhouse\.Cms\."),
"Microsoft Access": (r"Microsoft Access Driver", r"JET Database Engine", r"Access Database Engine"),
"Oracle": (r"ORA-[0-9][0-9][0-9][0-9]", r"Oracle error", r"Oracle.*Driver", r"Warning.*\Woci_.*", r"Warning.*\Wora_.*")
}
def _retrieve_content_xss(url, data=None):
surl=""
for i in xrange(len(url)):
if i > url.find('?'):
surl+=surl.join(url[i]).replace(' ',"%20")
else:
surl+=surl.join(url[i])
try:
req = urllib2.Request(surl, data, _headers)
retval = urllib2.urlopen(req, timeout=30).read()
except Exception, ex:
retval = getattr(ex, "message", "")
return retval or ""
def _retrieve_content_sql(url, data=None):
retval = {HTTPCODE: httplib.OK}
surl=""
for i in xrange(len(url)):
if i > url.find('?'):
surl+=surl.join(url[i]).replace(' ',"%20")
else:
surl+=surl.join(url[i])
try:
req = urllib2.Request(surl, data, _headers)
retval[HTML] = urllib2.urlopen(req, timeout=30).read()
except Exception, ex:
retval[HTTPCODE] = getattr(ex, "code", None)
retval[HTML] = getattr(ex, "message", "")
match = re.search(r"<title>(?P<result>[^<]+)</title>", retval[HTML], re.I)
retval[TITLE] = match.group("result") if match else None
retval[TEXT] = re.sub(r"(?si)<script.+?</script>|<!--.+?-->|<style.+?</style>|<[^>]+>|\s+", " ", retval[HTML])
return retval
def scan_page_xss(url, data=None):
print "Start scanning RXSS:\n"
retval, usable = False, False
url = re.sub(r"=(&|\Z)", "=1\g<1>", url) if url else url
data=re.sub(r"=(&|\Z)", "=1\g<1>", data) if data else data
try:
for phase in (GET, POST):
current = url if phase is GET else (data or "")
for match in re.finditer(r"((\A|[?&])(?P<parameter>[\w]+)=)(?P<value>[^&]+)", current):
found, usable = False, True
print "Scanning %s parameter '%s'" % (phase, match.group("parameter"))
prefix = ("".join(random.sample(string.ascii_lowercase, 5)))
suffix = ("".join(random.sample(string.ascii_lowercase, 5)))
if not found:
tampered = current.replace(match.group(0), "%s%s" % (match.group(0), urllib.quote("%s%s%s%s" % ("'", prefix, "".join(random.sample(TAMPER_XSS_CHAR_POOL, len(TAMPER_XSS_CHAR_POOL))), suffix))))
content = _retrieve_content_xss(tampered, data) if phase is GET else _retrieve_content_xss(url, tampered)
for sample in re.finditer("%s([^ ]+?)%s" % (prefix, suffix), content, re.I):
#print sample.group()
for regex, info, content_removal_regex in XSS_PATTERNS:
context = re.search(regex % {"chars": re.escape(sample.group(0))}, re.sub(content_removal_regex or "", "", content), re.I)
if context and not found and sample.group(1).strip():
print "!!!%s parameter '%s' appears to be XSS vulnerable (%s)" % (phase, match.group("parameter"), info)
found = retval = True
if not usable:
print " (x) no usable GET/POST parameters found"
except KeyboardInterrupt:
print "\r (x) Ctrl-C pressed"
return retval
def scan_page_sql(url, data=None):
print "Start scanning SQLI:\n"
retval, usable = False, False
url = re.sub(r"=(&|\Z)", "=1\g<1>", url) if url else url
data=re.sub(r"=(&|\Z)", "=1\g<1>", data) if data else data
try:
for phase in (GET, POST):
current = url if phase is GET else (data or "")
for match in re.finditer(r"((\A|[?&])(?P<parameter>\w+)=)(?P<value>[^&]+)", current):
vulnerable, usable = False, True
original=None
print "Scanning %s parameter '%s'" % (phase, match.group("parameter"))
tampered = current.replace(match.group(0), "%s%s" % (match.group(0), urllib.quote("".join(random.sample(TAMPER_SQL_CHAR_POOL, len(TAMPER_SQL_CHAR_POOL))))))
content = _retrieve_content_sql(tampered, data) if phase is GET else _retrieve_content_sql(url, tampered)
for (dbms, regex) in ((dbms, regex) for dbms in DBMS_ERRORS for regex in DBMS_ERRORS[dbms]):
if not vulnerable and re.search(regex, content[HTML], re.I):
print "!!!%s parameter '%s' could be error SQLi vulnerable (%s)" % (phase, match.group("parameter"), dbms)
retval = vulnerable = True
vulnerable = False
original = original or (_retrieve_content_sql(current, data) if phase is GET else _retrieve_content_sql(url, current))
for prefix,boolean,suffix in itertools.product(PREFIXES,BOOLEAN_TESTS,SUFFIXES):
if not vulnerable:
template = "%s%s%s" % (prefix,boolean, suffix)
payloads = dict((_, current.replace(match.group(0), "%s%s" % (match.group(0), urllib.quote(template % (1 if _ else 2, 1), safe='%')))) for _ in (True, False))
contents = dict((_, _retrieve_content_sql(payloads[_], data) if phase is GET else _retrieve_content_sql(url, payloads[_])) for _ in (False, True))
if all(_[HTTPCODE] for _ in (original, contents[True], contents[False])) and (any(original[_] == contents[True][_] != contents[False][_] for _ in (HTTPCODE, TITLE))):
vulnerable = True
else:
ratios = dict((_, difflib.SequenceMatcher(None, original[TEXT], contents[_][TEXT]).quick_ratio()) for _ in (True, False))
vulnerable = all(ratios.values()) and ratios[True] > 0.95 and ratios[False] < 0.95
if vulnerable:
print "!!!%s parameter '%s' could be error Blind SQLi vulnerable" % (phase, match.group("parameter"))
retval = True
if not usable:
print " (x) no usable GET/POST parameters found"
except KeyboardInterrupt:
print "\r (x) Ctrl-C pressed"
return retval
def init_options(proxy=None, cookie=None, ua=None, referer=None):
global _headers
_headers = dict(filter(lambda _: _[1], ((COOKIE, cookie), (UA, ua or NAME), (REFERER, referer))))
urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler({'http': proxy})) if proxy else None)
if __name__ == "__main__":
print "----------------------------------------------------------------------------------"
print "%s\nBy:%s" % (NAME, AUTHOR)
print "----------------------------------------------------------------------------------"
parser = optparse.OptionParser()
parser.add_option("--url", dest="url", help="Target URL")
parser.add_option("--data", dest="data", help="POST data")
parser.add_option("--cookie", dest="cookie", help="HTTP Cookie header value")
parser.add_option("--user-agent", dest="ua", help="HTTP User-Agent header value")
parser.add_option("--random-agent", dest="randomAgent", action="store_true", help="Use randomly selected HTTP User-Agent header value")
parser.add_option("--referer", dest="referer", help="HTTP Referer header value")
parser.add_option("--proxy", dest="proxy", help="HTTP proxy address")
options, _ = parser.parse_args()
if options.url:
init_options(options.proxy, options.cookie, options.ua if not options.randomAgent else random.choice(USER_AGENTS), options.referer)
result_xss= scan_page_xss(options.url if options.url.startswith("http") else "http://%s" % options.url, options.data)
print "\nScan results: %s vulnerabilities found" % ("possible" if result_xss else "no")
print "----------------------------------------------------------------------------------"
result_sql = scan_page_sql(options.url if options.url.startswith("http") else "http://%s" % options.url, options.data)
print "\nScan results: %s vulnerabilities found" % ("possible" if result_sql else "no")
print "----------------------------------------------------------------------------------"
else:
parser.print_help()The above is the Python script implemented by the editor to implement a web vulnerability scanning tool. I hope it will be helpful to you. If you have any questions, please leave me a message and the editor will reply to you in time. I would also like to thank you all for your support of the PHP Chinese website!
For more articles related to Python scripts implementing web vulnerability scanning tools, please pay attention to the PHP Chinese website!
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