2021-36277 | Dell Command Update/Update signature verification


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 (≈)

Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.

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.

6.0 $0-$5k 0.55

A vulnerability has been found in Dell Command Update and Update up to 4.2 and classified as critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a weak authentication vulnerability. The CWE definition for the vulnerability is CWE-347. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Dell Command Update, Dell Update, and Alienware Update versions prior to 4.3 contains a Improper Certificate Verification vulnerability. A local authenticated malicious user could exploit this vulnerability by modifying local configuration files in order to execute arbitrary code on the system.

The weakness was released 08/10/2021. The advisory is shared for download at dell.com. This vulnerability was named CVE-2021-36277 since 07/08/2021. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is needed for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/14/2021).

Upgrading to version 4.3 eliminates this vulnerability.

Vendor

Name

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

AV AC Au C I A
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Vector Complexity Authentication Confidentiality Integrity Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Weak authentication
CWE: CWE-347
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒


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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Command Update/Update 4.3

07/08/2021 CVE assigned
08/10/2021 +33 days Advisory disclosed
08/10/2021 +0 days VulDB entry created
08/14/2021 +4 days VulDB last updateVendor: https://www.dell.com/

Advisory: dell.com
Status: Confirmed

CVE: CVE-2021-36277 (🔒)

Created: 08/10/2021 10:59
Updated: 08/14/2021 21:57
Changes: (1) source_cve_cna
Complete: 🔍

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