Lenovo System Update up to 5.6.0.27 Download Folder Permission race condition

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Lenovo System Update up to 5.6.0.27 and classified as problematic. This issue affects some unknown processing of the component Download Folder Permission. This manipulation causes race condition. This vulnerability is handled as CVE-2015-2234. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Lenovo System Update up to 5.6.0.27. It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Download Folder Permission. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 04/14/2015 with IOActive as LEN-2015-011 as confirmed advisory (Website). It is possible to read the advisory at ioactive.com. This vulnerability is known as CVE-2015-2234 since 03/06/2015. Attacking locally is a requirement. A single authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available.

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. 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 databases at Tenable (83736), SecurityFocus (BID 74634†), SecurityTracker (ID 1032268†) and Vulnerability Center (SBV-50327†). Entries connected to this vulnerability are available at VDB-75209, VDB-75210, VDB-100493 and VDB-100494. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

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

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: 🔍

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 🔍
05/28/2015 +16 days 🔍
05/10/2022 +2539 days 🔍

Sourcesinfo

Vendor: lenovo.com

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

CVE: CVE-2015-2234 (🔍)
GCVE (CVE): GCVE-0-2015-2234
GCVE (VulDB): GCVE-100-75211
SecurityFocus: 74634 - Lenovo System Update CVE-2015-2234 Local Privilege Escalation Vulnerability
SecurityTracker: 1032268 - Lenovo System Update Lets Local Users Gain System Privileges and Remote Users Bypass Certificate Validation
Vulnerability Center: 50327 - Lenovo System Update before 5.06.0034 Local Privileges Escalation via Writing to an Update File, Medium

See also: 🔍

Entryinfo

Created: 05/07/2015 10:19
Updated: 05/10/2022 10:59
Changes: 05/07/2015 10:19 (74), 06/29/2017 07:35 (3), 05/10/2022 10:53 (3), 05/10/2022 10:59 (1)
Complete: 🔍
Cache ID: 216:523:103

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