Microsoft Windows Ancillary Function Driver access control

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.21

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows. Affected by this issue is some unknown functionality of the component Ancillary Function Driver. The manipulation leads to access control. This vulnerability is handled as CVE-2008-3464. Furthermore, there is an exploit available. It is recommended to upgrade the affected component. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Windows (Operating System) (the affected version unknown). Affected by this vulnerability is an unknown part of the component Ancillary Function Driver. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

afd.sys in the Ancillary Function Driver (AFD) component in Microsoft Windows XP SP2 and SP3 and Windows Server 2003 SP1 and SP2 does not properly validate input sent from user mode to the kernel, which allows local users to gain privileges via a crafted application, as demonstrated using crafted pointers and lengths that bypass intended ProbeForRead and ProbeForWrite restrictions, aka "AFD Kernel Overwrite Vulnerability."

The bug was discovered 10/14/2008. The weakness was presented 10/15/2008 by Fabien Le Mentec (kyREcon) with SkyRecon as MS08-066 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2008-3464 since 08/04/2008. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

A public exploit has been developed by Ruben Santamarta and been published immediately after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 34411 (MS08-066: Microsoft Windows Ancillary Function Driver (afd.sys) Local Privilege Escalation (956803)), 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 90462 (Microsoft Ancillary Function Driver Elevation of Privileges Vulnerability (MS08-066)).

Upgrading eliminates this vulnerability. Applying the patch MS08-066 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 even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (45582), Exploit-DB (6757), Tenable (34411), SecurityFocus (BID 31673†) and OSVDB (49061†). See VDB-3852, VDB-3851, VDB-3849 and VDB-3850 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.3

VulDB Base Score: 8.1
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Ruben Santamarta
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 34411
Nessus Name: MS08-066: Microsoft Windows Ancillary Function Driver (afd.sys) Local Privilege Escalation (956803)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900223
OpenVAS Name: Microsoft Ancillary Function Driver Elevation of Privilege Vulnerability (956803)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: MS08-066

Timelineinfo

08/04/2008 🔍
10/14/2008 +71 days 🔍
10/14/2008 +0 days 🔍
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10/14/2008 +0 days 🔍
10/14/2008 +0 days 🔍
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10/15/2008 +0 days 🔍
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10/15/2008 +0 days 🔍
10/17/2008 +2 days 🔍
05/26/2025 +6065 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS08-066
Researcher: Fabien Le Mentec (kyREcon)
Organization: SkyRecon
Status: Confirmed

CVE: CVE-2008-3464 (🔍)
GCVE (CVE): GCVE-0-2008-3464
GCVE (VulDB): GCVE-100-3853

OVAL: 🔍
IAVM: 🔍

X-Force: 45582 - Microsoft Windows Knowledge Base Article 956803 update is not installed, High Risk
SecurityFocus: 31673 - Microsoft Windows AFD Driver Local Privilege Escalation Vulnerability
Secunia: 32261
OSVDB: 49061 - Microsoft Windows Ancillary Function Driver (afd.sys) Local Privilege Escalation
SecurityTracker: 1021053
Vulnerability Center: 19728 - [MS08-066] Microsoft Windows XP and Windows Server 2003 AFD Kernel Overwrite Vulnerability, High
Vupen: ADV-2008-2817

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 10/17/2008 05:01 PM
Updated: 05/26/2025 07:43 AM
Changes: 10/17/2008 05:01 PM (108), 08/18/2019 05:49 PM (2), 11/08/2024 02:39 AM (17), 05/26/2025 07:43 AM (2)
Complete: 🔍
Cache ID: 18:B49:40

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