CVE-2015-2219

Lenovo System Update - Local 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

Lenovo System Update (formerly ThinkVantage System Update) before 5.06.0034 uses predictable security tokens, which allows local users to gain privileges by sending a valid token with a command to the System Update service (SUService.exe) through an unspecified named pipe.

Lenovo System Update (anteriormente ThinkVantage System Update) anterior a 5.06.0034 utiliza tokens de seguridad previsibles, lo que permite a usuarios locales ganar privilegios mediante el envío de un token válido con un comando al servicio System Update (SUService.exe) a través de una tubería nombrada (named pipe) no especificada.

The named pipe, \SUPipeServer, can be accessed by normal users to interact with the System update service. The service provides the possibility to execute arbitrary commands as SYSTEM if a valid security token is provided. This token can be generated by calling the GetSystemInfoData function in the DLL tvsutil.dll. Please, note that the System Update is stopped by default but can be started/stopped calling the Executable ConfigService.exe.

*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

2015-03-05 CVE Reserved
2015-04-12 First Exploit
2015-05-12 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (5)

URL	Tag	Source
http://securitytracker.com/id/1032268	Vdb Entry
http://www.ioactive.com/pdfs/Lenovo_System_Update_Multiple_Privilege_Escalations.pdf	X_refsource_misc
http://www.securityfocus.com/bid/74649	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/41708	2015-04-12

URL	Date	SRC

URL	Date	SRC
http://support.lenovo.com/us/en/product_security/lsu_privilege	2016-12-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Lenovo Search vendor "Lenovo"		System Update Search vendor "Lenovo" for product "System Update"				<= 5.06.0027 Search vendor "Lenovo" for product "System Update" and version " <= 5.06.0027"		-		Affected