Vulnerability Note VU#412228

Citrix Presentation Server heap based buffer overflow

Overview

A heap-based buffer overflow in Citrix Presentation Server may allow a remote attacker to execute arbitrary code on an vulnerable system in the context of the system user.

I. Description

Citrix Presentation Server is an application delivery system providing access to users accross a network. Presentation Server includes the Independent Management Architecture (IMA) service, which is responsible for the deployment of applications, policies, and other resources of remote hosts. The IMA service (ImaSrv.exe) listens by default on 2512/tcp or 2513/tcp. The service contains a boundary error which can be exploited by an attacker by sending a maliciously crafted packet to port 2512/tcp or 2513/tcp to initiate the buffer overflow.

II. Impact

By sending a maliciously crafted packet to port 2512/tcp or 2513/tcp, a remote attacker could execute arbitrary code on an vulnerable system in the context of the system user.

III. Solution

Apply the updates to this vulnerability as provided in Citrix Knowledge Center Article CTX114487.

Systems Affected

Vendor	Status	Date Updated
Citrix	Vulnerable	18-Jan-2008

References

http://support.citrix.com/article/CTX114487
http://www.zerodayinitiative.com/advisories/ZDI-08-002.html
http://secunia.com/advisories/28508/

Credit

This vulnerability was discovered by Eric Detoisien and reported via TippingPoint/ZDI.

This document was written by Joseph W. Pruszynski.

Other Information

Date Public	01/17/2008
Date First Published	01/22/2008 04:52:13 PM
Date Last Updated	01/22/2008
CERT Advisory
CVE Name
Metric	4.33
Document Revision	18