Microsoft Windows Vista SP2 up to Server 2012 R2 Shell use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.0$5k-$25k0.00

A vulnerability classified as critical has been found in Microsoft Windows Vista SP2 up to Server 2012 R2 (Operating System). This affects an unknown code block of the component Shell. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Use-after-free vulnerability in Windows Shell 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 remote attackers to execute arbitrary code via a crafted toolbar object, aka "Toolbar Use After Free Vulnerability."

The weakness was presented 10/13/2015 by SuperHei with KnownSec as MS15-109 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is uniquely identified as CVE-2015-2515 since 03/19/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/20/2022).

The vulnerability scanner Nessus provides a plugin with the ID 86366 (MS15-109: Security Update for Windows Shell to Address Remote Code Execution (3096443)), 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 91099 (Microsoft Windows Shell Remote Code Execution Vulnerabilities (MS15-109)).

Applying the patch MS15-109 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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 21199.

The vulnerability is also documented in the databases at Tenable (86366), SecurityFocus (BID 76981†), SecurityTracker (ID 1033799†) and Vulnerability Center (SBV-53395†). Further details are available at trustwave.com.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 86366
Nessus Name: MS15-109: Security Update for Windows Shell to Address Remote Code Execution (3096443)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS15-109
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/19/2015 🔍
10/13/2015 +208 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/14/2015 +1 days 🔍
10/14/2015 +0 days 🔍
06/20/2022 +2441 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS15-109
Researcher: SuperHei
Organization: KnownSec
Status: Confirmed

CVE: CVE-2015-2515 (🔍)
SecurityFocus: 76981 - Microsoft Windows Toolbar CVE-2015-2515 Use After Free Remote Code Execution Vulnerability
SecurityTracker: 1033799 - Windows Shell File Two Object Processing Flaws Let Remote Users Execute Arbitrary C ode
Vulnerability Center: 53395 - [MS15-109] Microsoft Windows Remote Code Execution of Shell Security Feature via a Crafted Toolbar- CVE-2015-2515, Critical

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

Entryinfo

Created: 10/14/2015 10:34 AM
Updated: 06/20/2022 04:49 PM
Changes: 10/14/2015 10:34 AM (70), 05/03/2019 08:03 AM (12), 06/20/2022 04:49 PM (2)
Complete: 🔍
Cache ID: 3:71D:40

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