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TITLE:
Microsoft Forefront Unified Access Gateway Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA46402

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46402/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46402

RELEASE DATE:
2011-10-12

DISCUSS ADVISORY:
http://secunia.com/advisories/46402/#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/46402/

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=46402

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:
Multiple vulnerabilities have been reported in Microsoft Forefront
Unified Access Gateway, which can be exploited by malicious people to
conduct cross-site scripting and HTTP response splitting attacks,
cause a DoS (Denial of Service), and compromise a user's system.

1) Certain unspecified input related to ExcelTables is not properly
sanitised before being returned to the user. This can be exploited to
insert arbitrary HTTP headers, which will be included in a response
sent to the user.

2) Certain unspecified input related to ExcelTables is not properly
sanitised before being returned to the user. This can be exploited to
execute arbitrary HTML and script code in a user's browser session in
context of an affected site.

3) Certain unspecified input is not properly sanitised before being
returned to the user. This can be exploited to execute arbitrary HTML
and script code in a user's browser session in context of an affected
site.

4) An unspecified error exists within the MicrosoftClient.jar Java
applet, which can be exploited to download and install a malicious
JAR file on client systems.

Successful exploitation of this vulnerability allows execution of
arbitrary code in context of a client using the gateway.

5) An error when handling session cookies with a NULL value can be
exploited to stop the IIS worker process and disrupt Web services.

SOLUTION:
Apply patches.

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

PROVIDED AND/OR DISCOVERED BY:
1 - 3) The vendor credits Tenable Network Security.
4, 5) Reported by the vendor.

ORIGINAL ADVISORY:
MS11-079 (KB2544641, KB2522482, KB2522483, KB2522484, KB2522485):
http://technet.microsoft.com/en-us/security/bulletin/ms11-079

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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