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TITLE:
Microsoft .NET Framework / Silverlight Class Inheritance Restriction
Vulnerability

SECUNIA ADVISORY ID:
SA46406

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46406/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46406

RELEASE DATE:
2011-10-11

DISCUSS ADVISORY:
http://secunia.com/advisories/46406/#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/46406/

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=46406

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 vulnerability has been reported in Microsoft .NET Framework and
Microsoft Silverlight, which can be exploited by malicious people to
compromise a user's system.

The vulnerability is caused due to an error when restricting
inheritance within classes and can be exploited via a specially
crafted web page.

Successful exploitation allows execution of arbitrary code, but
requires a browser that can run XAML Browser Applications (XBAPs) or
Silverlight applications.

SOLUTION:
Apply patches.

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

PROVIDED AND/OR DISCOVERED BY:
The vendor credits an anonymous person via SecuriTeam Secure
Disclosure program.

ORIGINAL ADVISORY:
MS11-078 (KB2572066, KB2572067, KB2572069, KB2572073, KB2572075,
KB2572076, KB2572077, KB2572078, KB2617986):
http://technet.microsoft.com/en-us/security/bulletin/ms11-078

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.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
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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