VDB-156452 · CVE-2020-8323 · GCVE-0-2020-8323

ThinkPad Notebook/ThinkPad/ThinkStation SD Driver code injection

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in ThinkPad Notebook, ThinkPad and ThinkStation. Affected is an unknown function of the component SD Driver. Such manipulation leads to code injection. This vulnerability is uniquely identified as CVE-2020-8323. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in ThinkPad Notebook, ThinkPad and ThinkStation (affected version not known) and classified as problematic. Affected by this issue is some unknown functionality of the component SD Driver. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A potential vulnerability in the SMI callback function used in the Legacy SD driver in some Lenovo ThinkPad, ThinkStation, and Lenovo Notebook models may allow arbitrary code execution.

The weakness was disclosed 06/09/2020. This vulnerability is handled as CVE-2020-8323 since 01/28/2020. The exploitation is known to be difficult. The attack needs to be approached locally. Additional levels of successful authentication are required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

ThinkPad

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 3.9
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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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 🔍
06/09/2020 +133 days 🔍
06/10/2020 +1 days 🔍
10/23/2020 +135 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-8323 (🔍)
GCVE (CVE): GCVE-0-2020-8323
GCVE (VulDB): GCVE-100-156452

Entryinfo

Created: 06/10/2020 11:41
Updated: 10/23/2020 17:27
Changes: 06/10/2020 11:41 (34), 06/10/2020 11:46 (11), 10/23/2020 17:27 (1)
Complete: 🔍
Cache ID: 216::103