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TITLE:
Citrix XenDesktop Client Drive Mapping Policy Bypass Security Issue

SECUNIA ADVISORY ID:
SA46696

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46696/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46696

RELEASE DATE:
2011-11-03

DISCUSS ADVISORY:
http://secunia.com/advisories/46696/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46696/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=46696

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in Citrix XenDesktop, which can be
exploited by malicious, local users to bypass certain security
restrictions.

The security issue is caused due to an error within the
implementation of Client Drive Mapping when enforcing a policy on the
Virtual Desktop Agent. This could lead to the users being able to
access otherwise restricted client drives.

Successful exploitation requires that a server-side policy is used to
disable Client Drive Mapping.

The security issue is reported in version 4.0.

SOLUTION:
Apply hotfix.

Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://support.citrix.com/article/CTX131198

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
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Please Note:
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clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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