Citrix Presentation Server IMA Service Buffer Overflow Vulnerability - Advisories

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Citrix Presentation Server IMA Service Buffer Overflow Vulnerability

Secunia Advisory:	SA28508
Release Date:	2008-01-17
Last Update:	2008-02-04

Critical:	Moderately critical
Impact:	System access
Where:	From local network
Solution Status:	Vendor Patch

Software:	Citrix Access Essentials 1.x Citrix Access Essentials 2.x Citrix Desktop Server 1.x Citrix MetaFrame Presentation Server 3.x Citrix Presentation Server 4.x

CVE reference:	CVE-2008-0356 (Secunia mirror)

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Description: A vulnerability has been reported in Citrix Presentation Server, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to a boundary error in the IMA service (ImaSrv.exe) and can be exploited to cause a buffer overflow via a specially crafted packet sent to port 2512/TCP or 2513/TCP. Successful exploitation allows execution of arbitrary code. The vulnerability affects the following products and versions: * Citrix MetaFrame Presentation Server 3.0 for Microsoft Windows 2000 * Citrix MetaFrame Presentation Server 3.0 for Microsoft Windows 2003 * Citrix Presentation Server 4.0 for Microsoft Windows 2000 * Citrix Presentation Server 4.0 for Microsoft Windows 2003 * Citrix Presentation Server 4.0 x64 Edition * Citrix Presentation Server 4.5 for Windows Server 2003 Russian Edition * Citrix Presentation Server 4.5 for Windows Server 2003 * Citrix Presentation Server 4.5 for Windows Server 2003 x64 Edition * Citrix Access Essentials 1.0 * Citrix Access Essentials 1.5 * Citrix Access Essentials 2.0 * Citrix Desktop Server 1.0 * Citrix Desktop Server 1.0 x64 Solution: Apply hotfix (see vendor advisory for details). http://support.citrix.com/article/CTX114487 Provided and/or discovered by: Discovered by Eric DETOISIEN and reported via TippingPoint/ZDI. Changelog: 2008-01-18: Updated advisory with additional information provided by TippingPoint/ZDI. 2008-01-23: Added link to US-CERT. 2008-02-04: Added CVE reference. Original Advisory: CTX114487: http://support.citrix.com/article/CTX114487 TippingPoint/ZDI: http://www.zerodayinitiative.com/advisories/ZDI-08-002.html Other References: US-CERT VU#412228: http://www.kb.cert.org/vuls/id/412228



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

7 Related Secunia Security Advisories

1. Citrix Presentation Server Weakness and Unauthorised Access

2. Citrix Presentation Server Published Application Execution Weakness

3. Citrix Products Session Reliability Service Security Bypass

4. Citrix Presentation Server Print Provider Buffer Overflow Vulnerability

5. Citrix Presentation Server IMA Service Vulnerabilities

6. Citrix MetaFrame Insecure Default Registry Key Permissions

7. Citrix Metaframe Presentation Server Policy Filtering Bypass

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