Microsoft Windows Vista SP2 up to Server 2012 Kernel-Mode Driver win32k.sys access control
![Microsoft](/logos/microsoft.gif)
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.0 | $0-$5k | 0.00 |
A vulnerability was found in Microsoft Windows Vista SP2 up to Server 2012 (Operating System). It has been classified as critical. Affected is an unknown code block in the library win32k.sys of the component Kernel-Mode Driver. 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, integrity, and availability. CVE summarizes:
win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."
The weakness was disclosed 07/14/2015 as MS15-073 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability is traded as CVE-2015-2365 since 03/19/2015. The attack needs to be approached locally. The requirement for exploitation is a authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.
The exploit is shared for download at packetstormsecurity.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 84747 (MS15-073: Vulnerabilities in Windows Kernel-Mode Driver Could Allow Elevation of Privilege (3070102)), 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 91065 (Microsoft Windows Kernel-Mode Driver Elevation of Privilege Vulnerabilities (MS15-073)).
Applying the patch MS15-073 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com.
The vulnerability is also documented in the databases at Tenable (84747), SecurityFocus (BID 75654†) and Vulnerability Center (SBV-51222†).
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
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CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.8
VulDB Temp Score: 7.0
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CVSSv2
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Exploiting
Class: Access controlCWE: CWE-264
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Local: Yes
Remote: No
Availability: 🔍
Access: Public
Status: Proof-of-Concept
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Nessus ID: 84747
Nessus Name: MS15-073: Vulnerabilities in Windows Kernel-Mode Driver Could Allow Elevation of Privilege (3070102)
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Threat Intelligence
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Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: MS15-073
Timeline
03/19/2015 🔍07/14/2015 🔍
07/14/2015 🔍
07/14/2015 🔍
07/15/2015 🔍
07/15/2015 🔍
06/24/2024 🔍
Sources
Vendor: microsoft.comProduct: microsoft.com
Advisory: MS15-073
Status: Confirmed
CVE: CVE-2015-2365 (🔍)
OVAL: 🔍
SecurityFocus: 75654
SecurityTracker: 1032904
Vulnerability Center: 51222 - [MS15-073] Microsoft Windows Local Privilege Escalation in win32k.sys Kernel-Mode Drivers - CVE-2015-2365, High
scip Labs: https://www.scip.ch/en/?labs.20140213
Entry
Created: 07/15/2015 12:42Updated: 06/24/2024 14:55
Changes: 07/15/2015 12:42 (62), 04/07/2017 14:24 (7), 05/31/2022 12:34 (3), 05/31/2022 12:42 (1), 06/24/2024 14:55 (23)
Complete: 🔍
Cache ID: 3:A74:103
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