|
Citrix ICA Client ActiveX Control Buffer Overflow Vulnerability
|
|
Secunia Advisory:
|
SA23246
|
|
|
Release Date:
|
2006-12-06
|
|
Last Update:
|
2007-01-05
|
|
Popularity:
|
10,432 views
|
|
|
Critical:
|
Highly critical
|
|
Impact:
|
System access
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | Citrix Presentation Server Client 9.x
|
|
|
Binary Analysis:
|
BA22 :: Available for 1 Credit 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| CVE reference: | CVE-2006-6334
|
|
Description:
A vulnerability has been discovered in Citrix Presentation Server Client, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error within the "SendChannelData()" method in the ICA Client ActiveX control component (WFICA.OCX). This can be exploited to cause a heap-based buffer overflow by e.g. setting the "DataSize" and "DataType" parameters to "1" and passing an overly long string in the "Data" parameter.
Successful exploitation allows execution of arbitrary code when a user e.g. visits a malicious website.
The vulnerability is confirmed in version 9.200.44376.0 included in the Citrix Presentation Server Client Package version 9.200. Other versions may also be affected.
Solution:
Update to version 9.230 or later.
Provided and/or discovered by:
Discovered independently by:
* Aaron Portnoy, TippingPoint Security Research Team.
* Andrew Christensen, FortConsult.
Changelog:
2006-12-07: Added information from TippingPoint.
2006-12-11: Added CVE reference.
2007-01-05: Added link to US-CERT.
Original Advisory:
Citrix:
http://support.citrix.com/article/CTX111827
TippingPoint:
http://www.tippingpoint.com/security/advisories/TSRT-06-15.html
FortConsult:
http://www.fortconsult.net/images/pdf/citrix_advisory_dec2006.pdf
Other References:
US-CERT VU#210969:
http://www.kb.cert.org/vuls/id/210969
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
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.
|
