CVE-2021-28494 : Exploit Details and Defense Strategies
Discover the critical CVE-2021-28494 affecting Arista's Metamako Operating System (MOS). Learn about the risk, impact, affected versions, and mitigation steps to secure your system.
A critical vulnerability has been identified in Arista's Metamako Operating System (MOS) software, affecting versions up to MOS-0.34.0. This vulnerability allows unprivileged users to bypass authentication when accessing the Web UI.
Understanding CVE-2021-28494
This section provides insights into the nature of the CVE-2021-28494 vulnerability.
What is CVE-2021-28494?
The vulnerability in the Arista MOS software enables unprivileged users to bypass authentication under specific conditions while accessing the Web UI. This security flaw impacts Arista Metamako Operating System versions up to MOS-0.34.0.
The Impact of CVE-2021-28494
The critical vulnerability poses a high risk as it allows unauthorized users to bypass authentication, potentially compromising the integrity of the system.
Technical Details of CVE-2021-28494
Explore the specific technical aspects of CVE-2021-28494 to better understand its implications.
Vulnerability Description
The vulnerability stems from authentication bypass by unprivileged users accessing the Web UI on Arista 7130 Systems running MOS, affecting versions up to MOS-0.34.0.
Affected Systems and Versions
The vulnerability impacts Arista Metamako Operating System up to version MOS-0.34.0 running on the 7130 product line.
Exploitation Mechanism
Under specific conditions, unprivileged users can exploit this vulnerability to bypass authentication and gain unauthorized access.
Mitigation and Prevention
Take proactive measures to address and prevent the CVE-2021-28494 vulnerability.
Immediate Steps to Take
As a mitigation strategy, it is crucial to upgrade to the latest version of the Arista Metamako Operating System, specifically MOS-0.35.0.
Long-Term Security Practices
Implement robust security protocols and access controls to prevent unauthorized access and enhance overall system security.
Patching and Updates
Regularly check for security updates and patches released by Arista to ensure the system is protected from known vulnerabilities.