Lenovo System Management Module up to 1.05 Debug Log Password debug log file

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Lenovo System Management Module up to 1.05. This issue affects some unknown processing of the component Debug Log Handler. The manipulation with an unknown input leads to a debug log file vulnerability (Password). Using CWE to declare the problem leads to CWE-534. This entry has been deprecated because its abstraction was too low-level. See CWE-532. Impacted is confidentiality. The summary by CVE is:

In System Management Module (SMM) versions prior to 1.06, the SMM records hashed passwords to a debug log when user authentication fails.

The bug was discovered 11/15/2018. The weakness was disclosed 11/27/2018 (Website). The advisory is shared at support.lenovo.com. The identification of this vulnerability is CVE-2018-16095 since 08/29/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.06 eliminates this vulnerability.

The entries 127212, 127213, 127214 and 127215 are pretty similar.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Password
Class: Debug log file / Password
CWE: CWE-534 / CWE-532 / CWE-200
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: System Management Module 1.06

Timelineinfo

08/29/2018 🔍
11/15/2018 +78 days 🔍
11/27/2018 +12 days 🔍
11/27/2018 +0 days 🔍
11/28/2018 +1 days 🔍
04/15/2020 +504 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-16095 (🔍)
See also: 🔍

Entryinfo

Created: 11/28/2018 10:45
Updated: 04/15/2020 16:16
Changes: 11/28/2018 10:45 (61), 04/15/2020 16:16 (2)
Complete: 🔍

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