Microsoft IIS 7.5 FastCGI Request Header memory corruption

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

A vulnerability, which was classified as critical, was found in Microsoft IIS 7.5 (Web Server). This affects an unknown function of the component FastCGI. The manipulation as part of a Request Header leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in Microsoft Internet Information Services (IIS) 7.5, when FastCGI is enabled, allows remote attackers to execute arbitrary code via crafted headers in a request, aka "Request Header Buffer Overflow Vulnerability."

The issue has been introduced in 07/22/2009. The weakness was shared 09/14/2010 by Travis Raybold with Rubicon West as MS10-065 as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. This vulnerability is uniquely identified as CVE-2010-2730 since 07/14/2010. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 419 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 801520 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 86916 (Microsoft Internet Information Services (IIS) Remote Code Execution Vulnerabilities (MS10-065)).

Upgrading eliminates this vulnerability. Applying the patch MS10-065 is able to eliminate this problem. The bugfix is ready for download at 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 10459.

The vulnerability is also documented in the databases at X-Force (61514) and Tenable (801520). The entries 4180 and 54719 are related to this item.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

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

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 801520
Nessus File: 🔍
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OpenVAS ID: 901151
OpenVAS Name: Microsoft Internet Information Services Remote Code Execution Vulnerabilities (2267960)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Patch: MS10-065
TippingPoint: 🔍

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Timelineinfo

07/22/2009 🔍
07/14/2010 +357 days 🔍
09/14/2010 +62 days 🔍
09/14/2010 +0 days 🔍
09/14/2010 +0 days 🔍
09/14/2010 +0 days 🔍
09/14/2010 +0 days 🔍
09/14/2010 +0 days 🔍
09/15/2010 +0 days 🔍
09/15/2010 +0 days 🔍
09/17/2010 +2 days 🔍
10/08/2010 +21 days 🔍
03/04/2017 +2339 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS10-065
Researcher: Travis Raybold
Organization: Rubicon West
Status: Confirmed

CVE: CVE-2010-2730 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 61514
Vulnerability Center: 27147 - [MS10-065] Microsoft IIS 7.5 FastCGI Request Header Buffer Overflow Vulnerability, Medium
SecurityFocus: 43138 - Microsoft IIS Request Header Buffer Overflow Vulnerability
Secunia: 41375 - Microsoft IIS FastCGI Request Header Buffer Overflow Vulnerability, Highly Critical
OSVDB: 67980 - Microsoft IIS Unspecified Remote Directory Authentication Bypass

See also: 🔍

Entryinfo

Created: 09/17/2010 02:00
Updated: 03/04/2017 18:09
Changes: 09/17/2010 02:00 (92), 03/04/2017 18:09 (12)
Complete: 🔍

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