Microsoft Windows 8/8.1/Server 2012/Server 2012 R2 KASLR input validation

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

Summaryinfo

A vulnerability identified as problematic has been detected in Microsoft Windows 8/8.1/Server 2012/Server 2012 R2. Affected by this issue is some unknown functionality of the component KASLR. The manipulation leads to input validation. This vulnerability is traded as CVE-2015-1674. An attack has to be approached locally. Furthermore, there is an exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows 8/8.1/Server 2012/Server 2012 R2 (Operating System). It has been rated as problematic. This issue affects some unknown functionality of the component KASLR. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability.

The weakness was shared 05/12/2015 by lokihardt@ASRT with Zero Day Initiative as MS15-052 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. The identification of this vulnerability is CVE-2015-1674 since 02/17/2015. An attack has to be approached locally. A simple authentication is required for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by 4B5F5F4B and been published 6 days after the advisory. The exploit is available 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 83361 (MS15-052: Vulnerability in Windows Kernel Could Allow Security Feature Bypass (3050514)), 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 91058 (Microsoft Windows Kernel Security Feature Bypass Vulnerability (MS15-052)).

Applying the patch MS15-052 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 (37052), Tenable (83361), SecurityFocus (BID 74488†), SecurityTracker (ID 1032292†) and Vulnerability Center (SBV-50062†). krebsonsecurity.com is providing further details. The entries VDB-75247, VDB-75248, VDB-75249 and VDB-75250 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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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

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: 4B5F5F4B
Download: 🔍

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Nessus ID: 83361
Nessus Name: MS15-052: Vulnerability in Windows Kernel Could Allow Security Feature Bypass (3050514)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802074
OpenVAS Name: Microsoft Windows Kernel Security Feature Bypass Vulnerability (3050514)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS15-052
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Timelineinfo

02/17/2015 🔍
05/12/2015 +84 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/12/2015 +0 days 🔍
05/13/2015 +1 days 🔍
05/13/2015 +0 days 🔍
05/13/2015 +0 days 🔍
05/18/2015 +5 days 🔍
05/18/2015 +0 days 🔍
06/08/2025 +3674 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS15-052
Researcher: lokihardt@ASRT
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2015-1674 (🔍)
GCVE (CVE): GCVE-0-2015-1674
GCVE (VulDB): GCVE-100-75329

OVAL: 🔍

SecurityFocus: 74488 - Microsoft Windows Kernel CVE-2015-1674 Local Security Bypass Vulnerability
SecurityTracker: 1032292 - Windows Kernel Memory Address Validation Flaw Lets Local Users Gain Elevated Privileges
Vulnerability Center: 50062 - [MS15-052] Microsoft Windows Kernel Local Bypass Restrictions Vulnerability, Low

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

Created: 05/13/2015 12:10
Updated: 06/08/2025 23:56
Changes: 05/13/2015 12:10 (78), 08/19/2018 20:04 (15), 05/17/2022 08:48 (2), 05/17/2022 08:49 (1), 06/08/2025 23:56 (14)
Complete: 🔍
Cache ID: 216::103

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

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