AMD 3rd Gen EPYC Processors SMM 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 was found in AMD 3rd Gen EPYC Processors, 1st Gen EPYC Processors, 2nd Gen EPYC Processors, 4th Gen EPYC Processors, EPYC Embedded 3000, EPYC Embedded 7002, EPYC Embedded 7003, EPYC Embedded 9003, Ryzen Embedded R1000, Ryzen Embedded R2000, Ryzen Embedded 5000, Ryzen Embedded 7000, Ryzen Embedded V1000, Ryzen Embedded V2000, Ryzen Embedded V3000, Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop processor with Radeon Graphics, Ryzen 7000 Desktop Processors, Ryzen 4000 Desktop Processors with Radeon Graphics, Ryzen Threadripper 3000 Processors, Ryzen Threadripper PRO Processors, Ryzen Threadripper PRO 3000WX Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processor with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 7030 Mobile Processors with Radeon Graphics, Ryzen 7040 Mobile Processors with Radeon Graphics, Ryzen 7045 Mobile Processors, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen 7035 Processors with Radeon Graphics and Ryzen 8000 Processors with Radeon Graphics. It has been classified as critical. Affected is an unknown function of the component SMM. The manipulation leads to Local Privilege Escalation. This vulnerability is uniquely identified as CVE-2023-31315. Local access is required to approach this attack. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in AMD 3rd Gen EPYC Processors, 1st Gen EPYC Processors, 2nd Gen EPYC Processors, 4th Gen EPYC Processors, EPYC Embedded 3000, EPYC Embedded 7002, EPYC Embedded 7003, EPYC Embedded 9003, Ryzen Embedded R1000, Ryzen Embedded R2000, Ryzen Embedded 5000, Ryzen Embedded 7000, Ryzen Embedded V1000, Ryzen Embedded V2000, Ryzen Embedded V3000, Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop processor with Radeon Graphics, Ryzen 7000 Desktop Processors, Ryzen 4000 Desktop Processors with Radeon Graphics, Ryzen Threadripper 3000 Processors, Ryzen Threadripper PRO Processors, Ryzen Threadripper PRO 3000WX Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Mobile Processor with Radeon Graphics, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen 7030 Mobile Processors with Radeon Graphics, Ryzen 7040 Mobile Processors with Radeon Graphics, Ryzen 7045 Mobile Processors, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7020 Processors with Radeon Graphics, Ryzen 7035 Processors with Radeon Graphics and Ryzen 8000 Processors with Radeon Graphics. This issue affects an unknown code block of the component SMM. The manipulation with an unknown input leads to a local privilege escalation 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. The summary by CVE is:

Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.

The advisory is shared at amd.com. The identification of this vulnerability is CVE-2023-31315 since 04/27/2023. The exploitation is known to be difficult. An attack has to be approached locally. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 212310 (SUSE SLED15 / SLES15 / openSUSE 15 Security Update : kernel-firmware (SUSE-SU-2024:4255-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (212310). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.4
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.8
CNA Vector (AMD): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 212310
Nessus Name: SUSE SLED15 / SLES15 / openSUSE 15 Security Update : kernel-firmware (SUSE-SU-2024:4255-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/27/2023 🔍
08/09/2024 +470 days 🔍
08/10/2024 +0 days 🔍
12/11/2024 +123 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-31315 (🔍)
GCVE (CVE): GCVE-0-2023-31315
GCVE (VulDB): GCVE-100-274097

Entryinfo

Created: 08/10/2024 00:45
Updated: 12/11/2024 17:34
Changes: 08/10/2024 00:45 (60), 08/13/2024 13:17 (1), 08/28/2024 03:32 (11), 12/11/2024 17:34 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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