Dell PowerEdge BIOS/Precision BIOS SMM Communication memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$5k-$25k0.00

Summaryinfo

A vulnerability was found in Dell PowerEdge BIOS and Precision BIOS and classified as critical. This affects an unknown function of the component SMM Communication Handler. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2022-34423. The attack can only be performed from a local environment. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Dell PowerEdge BIOS and Precision BIOS (the affected version is unknown). Affected by this issue is an unknown code of the component SMM Communication Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious user with high Privileges may potentially exploit this vulnerability to perform arbitrary code execution or cause denial of service.

The weakness was published 03/16/2023 as dsa-2022-204. The advisory is shared for download at dell.com. This vulnerability is handled as CVE-2022-34423 since 06/23/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/08/2023).

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

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Dell): 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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

06/23/2022 🔍
03/16/2023 +266 days 🔍
03/16/2023 +0 days 🔍
04/08/2023 +23 days 🔍

Sourcesinfo

Vendor: dell.com

Advisory: dsa-2022-204
Status: Confirmed

CVE: CVE-2022-34423 (🔍)
GCVE (CVE): GCVE-0-2022-34423
GCVE (VulDB): GCVE-100-223220

Entryinfo

Created: 03/16/2023 15:47
Updated: 04/08/2023 17:04
Changes: 03/16/2023 15:47 (48), 04/08/2023 17:04 (9)
Complete: 🔍
Cache ID: 216::103

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