CVE-2015-2233

Severity CVSS v4.0:

Pending analysis

Type:

CWE-310 Cryptographic Issues

Publication date:

12/05/2015

Last modified:

12/04/2025

Description

Lenovo System Update (formerly ThinkVantage System Update) before 5.06.0034 does not properly validate CA chains during signature validation, which allows man-in-the-middle attackers to upload and execute arbitrary files via a crafted certificate.

Impact

Vector 2.0

AV:A/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 8.30 HIGH
Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

8.30

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:lenovo:system_update::::::::		5.06.0027 (including)

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

http://securitytracker.com/id/1032268
http://support.lenovo.com/us/en/product_security/lsu_privilege
http://www.ioactive.com/pdfs/Lenovo_System_Update_Multiple_Privilege_Escalations.pdf
http://www.securityfocus.com/bid/74642
http://securitytracker.com/id/1032268
http://support.lenovo.com/us/en/product_security/lsu_privilege
http://www.ioactive.com/pdfs/Lenovo_System_Update_Multiple_Privilege_Escalations.pdf
http://www.securityfocus.com/bid/74642