Lenovo System Update up to 5.6.0.27 CA Certificate Validator cryptographic issues

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in Lenovo System Update up to 5.6.0.27. It has been classified as critical. Affected is some unknown functionality of the component CA Certificate Validator. The manipulation with an unknown input leads to a cryptographic issues vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 04/14/2015 with IOActive as LEN-2015-011 as confirmed advisory (Website). The advisory is available at ioactive.com. This vulnerability is traded as CVE-2015-2233 since 03/06/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 83736 (Lenovo System Update < 5.06.0034 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124280 (Lenovo System Update Service Multiple Security Vulnerabilities).

Upgrading to version 5.06.0034 eliminates this vulnerability. The upgrade is hosted for download at support.lenovo.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (83736). Similar entries are available at 75209, 75211, 100493 and 100494.

Affected

  • Lenovo ThinkPad
  • Lenovo ThinkCentre
  • Lenovo ThinkStation
  • Lenovo V/B/K/E

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issues
CWE: CWE-310
ATT&CK: T1600

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 83736
Nessus Name: Lenovo System Update < 5.06.0034 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: System Update 5.06.0034

Timelineinfo

03/06/2015 🔍
04/01/2015 +26 days 🔍
04/14/2015 +13 days 🔍
04/14/2015 +0 days 🔍
05/06/2015 +22 days 🔍
05/07/2015 +1 days 🔍
05/12/2015 +5 days 🔍
05/12/2015 +0 days 🔍
05/21/2015 +9 days 🔍
03/15/2016 +299 days 🔍
02/01/2019 +1053 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: LEN-2015-011
Organization: IOActive
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2233 (🔍)
SecurityTracker: 1032268
Vulnerability Center: 57319 - Lenovo System Update <5.06.0034 Remote Code Execution via a Crafted Certificate, High
SecurityFocus: 74642 - Lenovo System Update CVE-2015-2233 Certificate Validation Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 05/07/2015 10:19
Updated: 02/01/2019 09:41
Changes: 05/07/2015 10:19 (75), 02/01/2019 09:41 (4)
Complete: 🔍

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