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>> Citrix Presentation Server Unauthorized Command Execution Vulnerability

Title : Citrix Presentation Server Unauthorized Command Execution Vulnerability
VUPEN ID : VUPEN/ADV-2007-3870
CVE ID : CVE-2002-2426
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-11-15


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format  Receive VUPEN Security notifications by SMS 

A vulnerability has been identified in various Citrix products, which could be exploited by attackers to bypass security restrictions and potentially execute arbitrary commands. This issue is caused by an error when launching published applications while invoking an ICA connection to Citrix Presentation Server, which could be exploited by attackers to execute arbitrary code on a vulnerable server by tricking a user into visiting a malicious web site or opening an "ICA" file.

Affected Products

Citrix Access Essentials version 1.0
Citrix Access Essentials version 1.5
Citrix Access Essentials version 2.0
Citrix MetaFrame Presentation Server version 3.0 for Microsoft Windows 2000
Citrix MetaFrame Presentation Server version 3.0 for Microsoft Windows 2003
Citrix Presentation Server version 4.0 for Microsoft Windows 2000
Citrix Presentation Server version 4.0 for Microsoft Windows 2003
Citrix Presentation Server version 4.0 x64 Edition
Citrix Presentation Server version 4.5 for Windows Server 2003
Citrix Presentation Server version 4.5 for Windows Server 2003 Feature Pack 1
Citrix Presentation Server version 4.5 for Windows Server 2003 x64 Edition

Solution

Apply patch for Citrix Presentation Server 4.5 (Windows Server 2003) :
http://support.citrix.com/article/CTX115275

Apply patch for Citrix Presentation Server 4.5 (Windows Server 2003 x64 Editions) :
http://support.citrix.com/article/CTX115278

Apply patch for Citrix Presentation Server 4.0 (Windows 2000 Server) :
http://support.citrix.com/article/CTX115276

Apply patch for Citrix Presentation Server 4.0 (Windows Server 2003) :
http://support.citrix.com/article/CTX115277

References

http://www.vupen.com/english/advisories/2007/3870
http://support.citrix.com/article/CTX115245

Credits

Vulnerability reported by the vendor.

ChangeLog

2007-11-15 : Initial release

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