HipHop Virtual Machine 'WddxPacket::recursiveAddVar()' Function Cross Site Scripting Vulnerability

Bugtraq ID:	74061
Class:	Input Validation Error
CVE:	CVE-2014-9714
Remote:	Yes
Local:	No
Published:	Apr 13 2015 12:00AM
Updated:	Apr 13 2015 12:00AM
Credit:	Paul Bissonnette
Vulnerable:	Facebook Hiphop Virtual Machine 3.4.2 Facebook Hiphop Virtual Machine 3.4.1 Facebook Hiphop Virtual Machine 3.4 Facebook Hiphop Virtual Machine 3.2.0 Facebook Hiphop Virtual Machine 3.0.1 Facebook Hiphop Virtual Machine 2.4.1
Not Vulnerable:	Facebook Hiphop Virtual Machine 3.5

HipHop Virtual Machine 'WddxPacket::recursiveAddVar()' Function Cross Site Scripting Vulnerability

HipHop Virtual Machine is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and to launch other attacks.

HipHop Virtual Machine 'WddxPacket::recursiveAddVar()' Function Cross Site Scripting Vulnerability

Attackers can exploit this issue by enticing an unsuspecting victim to follow a malicious URI.

HipHop Virtual Machine 'WddxPacket::recursiveAddVar()' Function Cross Site Scripting Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.