Microsoft Windows OpenType Font Driver code injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

A vulnerability was found in Microsoft Windows (Operating System) (unknown version) and classified as critical. Affected by this issue is an unknown code block of the component OpenType Font Driver. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The OpenType Font (OTF) driver in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 does not properly perform array indexing, which allows local users to gain privileges via a crafted OpenType font, aka "OpenType Font Index Vulnerability."

The weakness was released 12/14/2010 by Marc Schoenenfeld with Red Hat Security Response Team as MS10-091 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability is handled as CVE-2010-3956 since 10/14/2010. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 51163 (MS10-091: Vulnerabilities in the OpenType Font (OTF) Driver Could Allow Remote Code Execution (2296199)), 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 90662 (Microsoft OpenType Font Driver Remote Code Execution Vulnerability (MS10-091)).

Upgrading eliminates this vulnerability. Applying the patch MS10-091 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 24936.

The vulnerability is also documented in the databases at X-Force (63562) and Tenable (51163). Entries connected to this vulnerability are available at 55774 and 55773.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 51163
Nessus Name: MS10-091: Vulnerabilities in the OpenType Font (OTF) Driver Could Allow Remote Code Execution (2296199)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900263
OpenVAS Name: Microsoft Windows OpenType Compact Font Format Driver Privilege Escalation Vulnerability (2296199)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: MS10-091
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

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

Timelineinfo

10/14/2010 🔍
12/14/2010 +61 days 🔍
12/14/2010 +0 days 🔍
12/14/2010 +0 days 🔍
12/14/2010 +0 days 🔍
12/14/2010 +0 days 🔍
12/14/2010 +0 days 🔍
12/15/2010 +1 days 🔍
12/15/2010 +0 days 🔍
12/15/2010 +0 days 🔍
12/16/2010 +0 days 🔍
12/20/2010 +4 days 🔍
03/18/2021 +3741 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS10-091
Researcher: Marc Schoenenfeld
Organization: Red Hat Security Response Team
Status: Confirmed

CVE: CVE-2010-3956 (🔍)
OVAL: 🔍

X-Force: 63562
SecurityTracker: 1024873 - Windows OpenType Font Driver Memory Corruption Flaws Let Remote Users Execute Arbitrary Code
Vulnerability Center: 28646 - [MS10-091] Microsoft Windows OpenType Font driver Remote Arbitrary Code Execution Vulnerability, Critical
SecurityFocus: 45311 - Microsoft Windows OpenType Font (OTF) Driver Invalid Array Index Remote Code Execution Vulnerability
Secunia: 42604 - Microsoft Windows OpenType Font Driver Three Vulnerabilities, Highly Critical
OSVDB: 69822 - Microsoft Windows OpenType Font Driver CMAP Table Parsing Arbitrary Code Execution

See also: 🔍

Entryinfo

Created: 12/20/2010 01:00
Updated: 03/18/2021 14:47
Changes: 12/20/2010 01:00 (88), 03/11/2017 08:46 (16), 03/18/2021 14:47 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!