Microsoft Windows up to 8/Server 2008 Broadcast Message win32k.sys access control

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows up to 8/Server 2008. It has been classified as problematic. This affects an unknown function of the file win32k.sys of the component Broadcast Message Handler. Performing a manipulation results in access control. This vulnerability is reported as CVE-2013-0008. The attack requires a local approach. Moreover, an exploit is present. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Microsoft Windows up to 8/Server 2008 (Operating System). This affects an unknown code block of the file win32k.sys of the component Broadcast Message Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

win32k.sys in the kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, Windows 8, Windows Server 2012, and Windows RT does not properly handle window broadcast messages, which allows local users to gain privileges via a crafted application, aka "Win32k Improper Message Handling Vulnerability."

The weakness was disclosed 01/08/2013 with Microsoft as MS13-005 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. The public release has been coordinated in cooperation with Microsoft. This vulnerability is uniquely identified as CVE-2013-0008 since 11/27/2012. An attack has to be approached locally. The requirement for exploitation is a authentication. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1068 for this issue.

After 2 months, there has been an exploit disclosed. The exploit is shared for download at exploit-db.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 63423 (MS13-005: Vulnerability in Windows Kernel-Mode Driver Could Allow Elevation of Privilege (2778930)), 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 90854 (Windows Kernel-Mode Driver Elevation of Privilege (MS13-005)).

Applying the patch KB2778930 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 X-Force (80862), Exploit-DB (24485), Tenable (63423), SecurityFocus (BID 57135†) and OSVDB (88966†). Further details are available at informationweek.com. The entries VDB-7248, VDB-7249, VDB-7251 and VDB-7252 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.4
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

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Nessus ID: 63423
Nessus Name: MS13-005: Vulnerability in Windows Kernel-Mode Driver Could Allow Elevation of Privilege (2778930)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902938
OpenVAS Name: Microsoft Windows Kernel-Mode Drivers Privilege Elevation Vulnerability (2778930)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: ms13_005_hwnd_broadcast.rb
MetaSploit Name: MS11-080 AfdJoinLeaf Privilege Escalation
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: KB2778930

Timelineinfo

11/27/2012 🔍
01/03/2013 +37 days 🔍
01/08/2013 +4 days 🔍
01/08/2013 +0 days 🔍
01/08/2013 +0 days 🔍
01/09/2013 +1 days 🔍
01/09/2013 +0 days 🔍
01/09/2013 +0 days 🔍
01/09/2013 +0 days 🔍
02/08/2013 +30 days 🔍
05/14/2025 +4478 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS13-005
Organization: Microsoft
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-0008 (🔍)
GCVE (CVE): GCVE-0-2013-0008
GCVE (VulDB): GCVE-100-7257

OVAL: 🔍

X-Force: 80862 - Microsoft Windows broadcast privilege escalation, High Risk
SecurityFocus: 57135 - Microsoft Windows CVE-2013-0008 Local Privilege Escalation Vulnerability
Secunia: 51704 - Microsoft Windows win32k.sys Window Broadcast Message Handling Vulnerability, Less Critical
OSVDB: 88966 - Microsoft Windows win32k.sys Window Broadcast Message Handling Local Privilege Escalation
SecurityTracker: 1027946 - Windows Kernel-Mode Drivers Bug Lets Local Users Gain Elevated Privileges
Vulnerability Center: 37931 - [MS13-005] Microsoft Windows Win32k Broadcast Messages Local Privilege Escalation Vulnerability, High

scip Labs: https://www.scip.ch/en/?labs.20140213
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Entryinfo

Created: 01/09/2013 10:30
Updated: 05/14/2025 14:20
Changes: 01/09/2013 10:30 (60), 04/07/2017 16:01 (34), 04/20/2021 16:00 (7), 04/20/2021 16:06 (2), 04/20/2021 16:13 (1), 05/14/2025 14:20 (14)
Complete: 🔍
Committer: olku
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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