Dell BIOS NVMe Storage credentials management

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 (≈)
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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.
8.0$5k-$25k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Dell BIOS. Affected by this vulnerability is an unknown functionality of the component NVMe Storage Handler. Such manipulation leads to credentials management. This vulnerability is traded as CVE-2021-21522. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability was found in Dell BIOS (unknown version) and classified as critical. Affected by this issue is an unknown code block of the component NVMe Storage Handler. The manipulation with an unknown input leads to a credentials management vulnerability. Using CWE to declare the problem leads to CWE-255. Impacted is confidentiality, integrity, and availability.

The weakness was shared 09/29/2021 as 000191495. The advisory is shared for download at dell.com. This vulnerability is handled as CVE-2021-21522 since 01/04/2021. 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 09/29/2021). The MITRE ATT&CK project declares the attack technique as T1552.

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

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.2
CNA Vector (Dell): 🔍

CVSSv2info

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

Exploitinginfo

Class: Credentials management
CWE: CWE-255
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

01/04/2021 🔍
09/29/2021 +267 days 🔍
09/29/2021 +0 days 🔍
10/03/2021 +4 days 🔍

Sourcesinfo

Vendor: dell.com

Advisory: 000191495
Status: Confirmed

CVE: CVE-2021-21522 (🔍)
GCVE (CVE): GCVE-0-2021-21522
GCVE (VulDB): GCVE-100-183524

Entryinfo

Created: 09/29/2021 07:48
Updated: 10/03/2021 16:40
Changes: 09/29/2021 07:48 (47), 10/03/2021 16:40 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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