Lenovo Desktop/ThinkStation SMI Callback code injection

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Lenovo Desktop and ThinkStation. This affects an unknown part of the component SMI Callback Handler. This manipulation causes code injection. This vulnerability is handled as CVE-2020-8333. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Lenovo Desktop and ThinkStation (affected version unknown). Affected by this vulnerability is an unknown functionality of the component SMI Callback Handler. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A potential vulnerability in the SMI callback function used in the EEPROM driver in some Lenovo Desktops and ThinkStation models may allow arbitrary code execution

The weakness was released 09/24/2020 (Website). It is possible to read the advisory at support.lenovo.com. This vulnerability is known as CVE-2020-8333 since 01/28/2020. The exploitation appears to be difficult. Attacking locally is a requirement. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at VDB-160611 and VDB-160612. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.4
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/28/2020 🔍
09/24/2020 +240 days 🔍
09/25/2020 +1 days 🔍
09/25/2020 +0 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Status: Not defined

CVE: CVE-2020-8333 (🔍)
GCVE (CVE): GCVE-0-2020-8333
GCVE (VulDB): GCVE-100-161911
See also: 🔍

Entryinfo

Created: 09/25/2020 13:30
Updated: 09/25/2020 13:35
Changes: 09/25/2020 13:30 (37), 09/25/2020 13:35 (11)
Complete: 🔍
Cache ID: 216::103

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