Microsoft Windows Vista SP2 up to Server 2012 R2 Task Manager Filesystem access control

CVSS Meta Temp Score
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows Vista SP2 up to Server 2012 R2. This issue affects some unknown processing of the component Task Manager. Performing a manipulation results in access control (Filesystem). This vulnerability is identified as CVE-2015-2525. The attack is only possible with local access. Additionally, an exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows Vista SP2 up to Server 2012 R2 (Operating System). It has been classified as problematic. This affects an unknown functionality of the component Task Manager. The manipulation with an unknown input leads to a access control vulnerability (Filesystem). CWE is classifying the issue as CWE-264. This is going to have an impact on availability. The summary by CVE is:

Task Scheduler in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to bypass intended filesystem restrictions and delete arbitrary files via unspecified vectors, aka "Windows Task File Deletion Elevation of Privilege Vulnerability."

The weakness was released 09/08/2015 by James Forshaw with Google Project Zero as MS15-097 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is uniquely identified as CVE-2015-2525 since 03/19/2015. Attacking locally is a requirement. The successful exploitation needs a authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The exploit is shared for download at packetstormsecurity.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 85844 (MS15-102: Vulnerabilities in Windows Task Management Could Allow Elevation of Privilege (3089657)), 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 91089 (Microsoft Windows Task Management Elevation of Privilege Vulnerability (MS15-102)).

Applying the patch MS15-097 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 Tenable (85844), SecurityFocus (BID 76653†), SecurityTracker (ID 1033494†) and Vulnerability Center (SBV-52527†). Entries connected to this vulnerability are available at VDB-77613, VDB-77614, VDB-77615 and VDB-77616. Be aware that VulDB is the high quality source for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 85844
Nessus Name: MS15-102: Vulnerabilities in Windows Task Management Could Allow Elevation of Privilege (3089657)
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: 🔍
0-Day Time: 🔍
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Patch: MS15-097
Fortigate IPS: 🔍

Timelineinfo

03/19/2015 🔍
09/08/2015 +173 days 🔍
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09/09/2015 +1 days 🔍
09/09/2015 +0 days 🔍
06/24/2024 +3211 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS15-097
Researcher: James Forshaw
Organization: Google Project Zero
Status: Confirmed

CVE: CVE-2015-2525 (🔍)
GCVE (CVE): GCVE-0-2015-2525
GCVE (VulDB): GCVE-100-77631
SecurityFocus: 76653 - Microsoft Windows Task Scheduler CVE-2015-2525 Local Privilege Escalation Vulnerability
SecurityTracker: 1033494 - Windows Task Manager Bugs Let Local Users Obtain System Privileges
Vulnerability Center: 52527 - [MS15-102] Microsoft Windows Local Security Bypass Vulnerability in Task File Deletion, High

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 09/09/2015 10:06
Updated: 06/24/2024 14:55
Changes: 09/09/2015 10:06 (68), 08/19/2018 20:04 (12), 06/14/2022 16:06 (3), 06/14/2022 16:14 (1), 06/24/2024 14:55 (23)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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