Dell PowerEdge BIOS/Precision BIOS SMM Communication memory corruption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.9 | $5k-$25k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Dell PowerEdge BIOS and Precision BIOS. This affects an unknown part of the component SMM Communication Handler. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2022-34413. The attack needs to be approached locally. There is no available exploit.
Details
A vulnerability, which was classified as critical, was found in Dell PowerEdge BIOS and Precision BIOS (affected version unknown). This affects an unknown functionality of the component SMM Communication Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
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 presented 03/16/2023 as dsa-2022-204. It is possible to read the advisory at dell.com. This vulnerability is uniquely identified as CVE-2022-34413 since 06/23/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (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.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Vendor
Name
License
Website
- Vendor: https://www.dell.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.9VulDB 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): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
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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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
06/23/2022 🔍03/16/2023 🔍
03/16/2023 🔍
04/08/2023 🔍
Sources
Vendor: dell.comAdvisory: dsa-2022-204
Status: Confirmed
CVE: CVE-2022-34413 (🔍)
GCVE (CVE): GCVE-0-2022-34413
GCVE (VulDB): GCVE-100-223203
Entry
Created: 03/16/2023 13:47Updated: 04/08/2023 15:02
Changes: 03/16/2023 13:47 (48), 04/08/2023 15:02 (9)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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