CVE-2015-2524

Microsoft Windows - CreateObjectTask SettingsSyncDiagnostics Privilege Escalation

Severity Score

7.2

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 do not properly constrain impersonation levels, which allows local users to gain privileges via a crafted application, aka "Windows Task Management Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2528.

Vulnerabilidad en Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold y R2, Windows RT Gold y 8.1 y Windows 10 no restringe adecuadamente los niveles de suplantación, lo que permite a usuarios locales obtener privilegios a través de una aplicación manipulada, también conocida como 'Windows Task Management Elevation of Privilege Vulnerability,' una vulnerabilidad diferente a CVE-2015-2528.

The Microsoft\Windows\Shell\CreateObjectTask initializes a shell32 based ICreateObject COM server as local system. This is marked as being accessible from a normal user account so once created we can attach to it. The server only has one method, CreateObject which checks the CLSID against a list of known safe classes before allowing it to be instantiated. One of these classes is a diagnostic class for setting synchronization implemented in SettingSync.dll.

*Credits: N/A

CVSS Scores

NISTv2 7.2

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-03-19 CVE Reserved
2015-09-09 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (3)

URL	Tag	Source
http://www.securitytracker.com/id/1033494	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/38202	2024-08-06

URL	Date	SRC
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-102	2019-05-14

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 10 Search vendor "Microsoft" for product "Windows 10"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows 8 Search vendor "Microsoft" for product "Windows 8"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows 8.1 Search vendor "Microsoft" for product "Windows 8.1"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Rt Search vendor "Microsoft" for product "Windows Rt"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Rt 8.1 Search vendor "Microsoft" for product "Windows Rt 8.1"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012"				-		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012"				r2 Search vendor "Microsoft" for product "Windows Server 2012" and version "r2"		-		Affected