Alt-N MDaemon Email Body HTML/JS Injection Vulnerability

Software:    Alt-N MDaemon v13.0.3 and prior versions

Vendor:    http://www.altn.com/

Vulnerability Type:    HTML/JS Injection

Remote:    Yes

Local:    No

Discovered:    14 September 2012

Reported:    19 December 2012

Disclosed:    18 February 2013

Whitepaper:   Pwning_MDaemon.pdf

VULNERABILITY DESCRIPTION:

Alt-N MDaemon is prone to an HTML/Javascript injection vulnerability because it fails to sanitize user-supplied input.

Attacker-supplied HTML and/or JavaScript code could run in the context of the affected site, potentially allowing the attacker to steal cookie-based authentication credentials and control how the site is rendered to the user; other attacks are also possible.

Alt-N MDaemon v13.0.3 & v12.5.6 were tested and found vulnerable; other versions may also be affected.

PoC Exploit:

<<!-------->script>alert('XSS');<<!-------->/script>

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