Microsoft Forefront Unified Access Gateway 2010 input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Microsoft Forefront Unified Access Gateway 2010. This issue affects some unknown processing. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2011-2012. There is no available exploit. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in Microsoft Forefront Unified Access Gateway 2010 and classified as problematic. This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka "Null Session Cookie Crash."

The weakness was presented 10/11/2011 with Microsoft as MS11-079 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability was named CVE-2011-2012. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 56453 (MS11-079: Vulnerabilities in Microsoft Forefront Unified Access Gateway Could Cause Remote Code Execution (2544641)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90749 (Microsoft Forefront Unified Access Gateway Remote Code Execution Vulnerability (MS11-079)).

Applying the patch MS11-079 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11751.

The vulnerability is also documented in the databases at X-Force (70108), Tenable (56453), SecurityFocus (BID 49980†) and Vulnerability Center (SBV-33539†). See VDB-4420, VDB-58995, VDB-58994 and VDB-58993 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56453
Nessus Name: MS11-079: Vulnerabilities in Microsoft Forefront Unified Access Gateway Could Cause Remote Code Execution (2544641)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 903045
OpenVAS Name: MS Forefront Unified Access Gateway Remote Code Execution Vulnerabilities (2544641)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-079
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/09/2011 🔍
10/11/2011 +155 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/12/2011 +1 days 🔍
03/23/2015 +1258 days 🔍
11/23/2021 +2437 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-079
Organization: Microsoft
Status: Confirmed

CVE: CVE-2011-2012 (🔍)
GCVE (CVE): GCVE-0-2011-2012
GCVE (VulDB): GCVE-100-59008

OVAL: 🔍
IAVM: 🔍

X-Force: 70108
SecurityFocus: 49980 - Microsoft Forefront Unified Access Gateway Null Session Cookie Denial of Service Vulnerability
Vulnerability Center: 33539 - [MS11-079] Microsoft Forefront Unified Access Gateway Null Session Cookie Crash, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/23/2021 18:09
Changes: 03/23/2015 16:50 (71), 04/03/2017 17:59 (11), 11/23/2021 18:02 (3), 11/23/2021 18:09 (1)
Complete: 🔍
Cache ID: 216::103

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