Microsoft Forefront Unified Access Gateway 2010 code injection

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft Forefront Unified Access Gateway 2010. This impacts an unknown function. Executing a manipulation can lead to code injection. This vulnerability is registered as CVE-2011-1895. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Forefront Unified Access Gateway 2010. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

CRLF injection vulnerability in Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 allows remote attackers to inject arbitrary HTTP headers, and conduct HTTP response splitting attacks and cross-site scripting (XSS) attacks, via unspecified vectors, aka "ExcelTable Response Splitting XSS Vulnerability."

The weakness was published 10/11/2011 by Tenable Network Security with Tenable Network Security as MS11-079 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability was named CVE-2011-1895 since 05/04/2011. 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 MITRE ATT&CK project declares the attack technique as T1059.

As 0-day the estimated underground price was around $25k-$100k. 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 and running in the context l. 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)).

Upgrading eliminates this vulnerability. Applying the patch MS11-079 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11748.

The vulnerability is also documented in the databases at X-Force (70105), Tenable (56453), SecurityFocus (BID 49979†), OSVDB (76235†) and Secunia (SA46402†). Similar entries are available at VDB-59008, VDB-58995, VDB-58994 and VDB-58993. Once again VulDB remains the best source for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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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: 🔍
Nessus Context: 🔍

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: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS11-079
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍

Timelineinfo

05/04/2011 🔍
10/11/2011 +160 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/11/2011 +0 days 🔍
10/12/2011 +1 days 🔍
10/19/2011 +7 days 🔍
03/19/2021 +3439 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-079
Researcher: Tenable Network Security
Organization: Tenable Network Security
Status: Confirmed

CVE: CVE-2011-1895 (🔍)
GCVE (CVE): GCVE-0-2011-1895
GCVE (VulDB): GCVE-100-4420

OVAL: 🔍
IAVM: 🔍

X-Force: 70105
SecurityFocus: 49979 - Microsoft Forefront Unified Access Gateway (CVE-2011-1895) HTTP Response Splitting Vulnerability
Secunia: 46402 - Microsoft Forefront Unified Access Gateway Multiple Vulnerabilities, Highly Critical
OSVDB: 76235
Vulnerability Center: 33537 - [MS11-079] Microsoft Forefront Unified Access Gateway ExcelTable Response Splitting Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 10/19/2011 02:00
Updated: 03/19/2021 15:42
Changes: 10/19/2011 02:00 (85), 04/03/2017 17:59 (11), 03/19/2021 15:42 (3)
Complete: 🔍
Cache ID: 216::103

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