Web漏洞掃描工具(python)

這是去年畢設做的一個Web漏洞掃描小工具,主要針對簡單的SQL注入漏洞、SQL盲注和XSS漏洞,代碼是看過github外國大神(聽說是SMAP的編寫者之一)的兩個小工具源碼,根據裏面的思路自己寫的。以下是使用說明和源代碼。

一、使用說明:

1.運行環境:

Linux命令行界面+Python2.7

2.程序源碼:

Vim scanner//建立一個名爲scanner的文件

Chmod a+x scanner//修改文件權限爲可執行的

3.運行程序:

Python scanner//運行文件


若沒有攜帶目標URL信息,界面輸出幫助信息,提醒可以可輸入的參數。

參數包括:

--h 輸出幫助信息

--url 掃描的URL

--data POST請求方法的參數

--cookie HTTP請求頭Cookie值

--user-agent HTTP請求頭User-Agent值

--random-agent 是否使用瀏覽器僞裝

--referer 目標URL的上一層界面

--proxy HTTP請求頭代理值

 

例如掃描“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"

輸出掃描結果如下:

結果顯示:

存在XSS漏洞,漏洞匹配漏洞特徵庫“”>.XSS.<””,屬於嵌入標籤外的類型。

存在SQL注入漏洞,目標網站服務器的數據庫類型爲MYSQL。

存在BLIND SQL注入漏洞。


二、源代碼:

代碼驗證過可以運行,我個人推薦用DVWA測試吧。

#!-*-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()






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