Microsoft Windows up to Vista Ancillary Function Driver afd.sys double free

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Microsoft Windows up to Vista. This issue affects some unknown processing of the file afd.sys of the component Ancillary Function Driver. Such manipulation leads to double free. This vulnerability is documented as CVE-2014-1767. The attack needs to be performed locally. Additionally, an exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows up to Vista (Operating System). Affected by this issue is an unknown code block of the file afd.sys of the component Ancillary Function Driver. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability.

The weakness was released 07/08/2014 by Sebastian Apelt with Zero Day Initiative as MS14-040 as confirmed bulletin (Technet) via ZDI (Zero Day Initiative). The advisory is shared for download at technet.microsoft.com. The public release was coordinated with the vendor. This vulnerability is handled as CVE-2014-1767 since 01/29/2014. The attack needs to be approached locally. The requirement for exploitation is a simple authentication. Technical details as well as a public exploit are known.

A public exploit has been developed by Rick Larabee and been published 2 years after the advisory. The exploit is available at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 76409 (MS14-040: Vulnerability in Ancillary Function Driver (AFD) Could Allow Elevation of Privilege (2975684)), 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 90965 (Microsoft Windows Ancillary Function Driver (AFD) Privilege Escalation Vulnerability (MS14-040)).

Applying the patch MS14-040 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (39446), Tenable (76409), SecurityFocus (BID 68394†), Secunia (SA59778†) and SecurityTracker (ID 1030536†). Entries connected to this vulnerability are available at VDB-67018, VDB-67017 and VDB-67015. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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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: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Rick Larabee
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 76409
Nessus Name: MS14-040: Vulnerability in Ancillary Function Driver (AFD) Could Allow Elevation of Privilege (2975684)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
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Exploit Delay Time: 🔍

Patch: MS14-040

Timelineinfo

01/29/2014 🔍
07/08/2014 +160 days 🔍
07/08/2014 +0 days 🔍
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07/08/2014 +0 days 🔍
07/09/2014 +1 days 🔍
07/09/2014 +0 days 🔍
02/15/2016 +586 days 🔍
02/15/2016 +0 days 🔍
12/20/2024 +3231 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS14-040
Researcher: Sebastian Apelt
Organization: Zero Day Initiative
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2014-1767 (🔍)
GCVE (CVE): GCVE-0-2014-1767
GCVE (VulDB): GCVE-100-67016

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 68394 - Microsoft Windows Ancillary Function Driver CVE-2014-1767 Local Privilege Escalation Vulnerability
Secunia: 59778 - Microsoft Windows Ancillary Function Driver (AFD) Double-Free Privilege Escalation Vulnera, Less Critical
SecurityTracker: 1030536 - Windows Ancillary Function Driver Double Free Memory Error Lets Local Users Gain Elevated Privileges
Vulnerability Center: 45323 - [MS14-040] Microsoft Windows Local Host Privilege due to an Error in the AFD - CVE-2014-1767, High

scip Labs: https://www.scip.ch/en/?labs.20140213
See also: 🔍

Entryinfo

Created: 07/09/2014 10:35
Updated: 12/20/2024 04:47
Changes: 07/09/2014 10:35 (81), 04/07/2017 15:08 (14), 02/08/2022 15:12 (2), 02/08/2022 15:18 (1), 12/20/2024 04:47 (16)
Complete: 🔍
Cache ID: 216:561:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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