Vulnerability Monitor

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CVE-2015-2233

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.

Security Impact Summary

CVE-2015-2233 is a security vulnerability that . Impacting 1 product from lenovo organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-05-12T19:59:14.070

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 8.3 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:C/I:C/A:C

Access Vector: ADJACENT_NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

6.5

Impact Score

10.0

Weaknesses

Type: Primary
CWE-310

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lenovo	system_update	≤ 5.06.0027	Yes

References

http://securitytracker.com/id/1032268 ([email protected])
http://support.lenovo.com/us/en/product_security/lsu_privilege Vendor Advisory ([email protected])
http://www.ioactive.com/pdfs/Lenovo_System_Update_Multiple_Privilege_Escalations.pdf ([email protected])
http://www.securityfocus.com/bid/74642 ([email protected])
http://securitytracker.com/id/1032268 (af854a3a-2127-422b-91ae-364da2661108)
http://support.lenovo.com/us/en/product_security/lsu_privilege Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.ioactive.com/pdfs/Lenovo_System_Update_Multiple_Privilege_Escalations.pdf (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/74642 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For lenovo's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.