CVE-2021-28493 : Security Advisory and Response

A security vulnerability has been identified in Arista's MOS (Metamako Operating System) software, affecting the 7130 product line. This vulnerability may allow a user to execute unauthorized commands. Here's what you need to know about CVE-2021-28493:

Understanding CVE-2021-28493

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2021-28493?

CVE-2021-28493 is a security flaw found in Arista's Metamako Operating System that enables users to run commands without proper privileges, potentially leading to unauthorized access.

The Impact of CVE-2021-28493

The vulnerability poses a high risk, with a CVSS base score of 8.4, indicating a significant impact on system integrity and availability.

Technical Details of CVE-2021-28493

Explore the specifics of the vulnerability in this section.

Vulnerability Description

Under certain conditions, users can exploit this flaw to execute commands, even with limited privileges, compromising system security.

Affected Systems and Versions

The vulnerability affects Arista 7130 Systems running MOS, specifically versions prior to MOS-0.33.0.

Exploitation Mechanism

The flaw's low attack complexity and local vector make it easier for threat actors to carry out attacks, emphasizing the importance of prompt mitigation.

Mitigation and Prevention

Learn how to address and prevent CVE-2021-28493 in the following section.

Immediate Steps to Take

To mitigate the risk, users are advised to upgrade their systems to MOS-0.33.0 or later versions promptly.

Long-Term Security Practices

Implementing strong authentication mechanisms and access controls can help enhance overall system security and prevent similar vulnerabilities.

Patching and Updates

Regularly applying security patches and updates, as well as monitoring for emerging threats, are crucial to safeguarding system integrity and data.