AMD Ryzen SMM privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in AMD Ryzen. The impacted element is an unknown function of the component SMM Handler. This manipulation causes an unknown weakness. This vulnerability appears as CVE-2023-20563. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability has been found in AMD Ryzen (the affected version is unknown) and classified as problematic. Affected by this vulnerability is an unknown code of the component SMM Handler. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Insufficient protections in System Management Mode (SMM) code may allow an attacker to potentially enable escalation of privilege via local access.

The weakness was presented 11/14/2023. It is possible to read the advisory at amd.com. This vulnerability is known as CVE-2023-20563 since 10/27/2022. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
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

10/27/2022 🔍
11/14/2023 +383 days 🔍
11/14/2023 +0 days 🔍
12/09/2023 +25 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-20563 (🔍)
GCVE (CVE): GCVE-0-2023-20563
GCVE (VulDB): GCVE-100-245263

Entryinfo

Created: 11/14/2023 20:09
Updated: 12/09/2023 09:41
Changes: 11/14/2023 20:09 (35), 12/09/2023 09:41 (12)
Complete: 🔍
Cache ID: 216::103

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