CVE-2021-27790 : What You Need to Know
Discover the impact of CVE-2021-27790, a vulnerability in Brocade Fabric OS versions before v.9.0.1a, v8.2.3, v8.2.0_CBN4, and v7.4.2h, enabling attackers to execute arbitrary code.
A vulnerability, CVE-2021-27790, has been identified in Brocade Fabric OS versions before Brocade Fabric OS v.9.0.1a, v8.2.3, and v8.2.0_CBN4, and v7.4.2h. This vulnerability could be exploited by authenticated attackers to execute arbitrary code as the root user.
Understanding CVE-2021-27790
This section will cover what CVE-2021-27790 is and its impact.
What is CVE-2021-27790?
The vulnerability in Brocade Fabric OS versions mentioned allows attackers with authenticated access to exploit stack-based buffer overflows through the ipfilter command. This can lead to the execution of arbitrary code with root user privileges.
The Impact of CVE-2021-27790
The impact of this vulnerability is significant as it enables attackers to execute malicious code on affected systems, potentially compromising the entire infrastructure.
Technical Details of CVE-2021-27790
Let's delve into the technical aspects of CVE-2021-27790 to understand its implications better.
Vulnerability Description
The vulnerability arises from the unsafe handling of user input by the ipfilter command in Brocade Fabric OS, leading to stack-based buffer overflows and the subsequent execution of arbitrary code.
Affected Systems and Versions
Brocade Fabric OS versions prior to Brocade Fabric OS v.9.0.1a, v8.2.3, and v8.2.0_CBN4, and v7.4.2h are vulnerable to this exploit.
Exploitation Mechanism
Authenticated attackers can leverage this vulnerability by crafting specific inputs to trigger buffer overflows, culminating in the execution of unauthorized code.
Mitigation and Prevention
Learn how to protect your systems from CVE-2021-27790 and prevent potential security breaches.
Immediate Steps to Take
It is crucial to apply security patches provided by Brocade to mitigate the vulnerability. Additionally, monitoring for any unauthorized access is recommended.
Long-Term Security Practices
Implementing strong authentication measures and regular security audits can help prevent similar vulnerabilities in the future.
Patching and Updates
Stay updated with security advisories and promptly apply patches released by Brocade to address this vulnerability.