CVE-2021-20621 Explained : Impact and Mitigation
Learn about CVE-2021-20621, a CSRF vulnerability in Aterm WG2600HP and WG2600HP2 devices by NEC Corporation. Understand the impact, affected versions, exploitation mechanism, and mitigation steps.
A Cross-site request forgery (CSRF) vulnerability has been identified in Aterm WG2600HP and Aterm WG2600HP2 devices, manufactured by NEC Corporation. The affected versions include Aterm WG2600HP firmware Ver1.0.2 and earlier, as well as Aterm WG2600HP2 firmware Ver1.0.2 and earlier. This vulnerability could allow remote attackers to hijack administrator authentication through unspecified vectors.
Understanding CVE-2021-20621
This section provides detailed insights into the CVE-2021-20621 vulnerability.
What is CVE-2021-20621?
The CVE-2021-20621 vulnerability is a Cross-site request forgery (CSRF) flaw present in the firmware of Aterm WG2600HP and Aterm WG2600HP2 devices. It permits malicious actors to exploit unspecified vectors, resulting in the compromise of administrator authentication.
The Impact of CVE-2021-20621
The impact of CVE-2021-20621 poses a severe security risk as it enables remote attackers to potentially take over the authentication of administrators, leading to unauthorized access and potential data breaches.
Technical Details of CVE-2021-20621
This section delves into the technical aspects of the CVE-2021-20621 vulnerability.
Vulnerability Description
The vulnerability arises due to inadequate validation of requests in the affected firmware versions of Aterm WG2600HP and Aterm WG2600HP2. This oversight allows threat actors to forge unauthorized requests, leading to unauthorized access.
Affected Systems and Versions
Aterm WG2600HP firmware Ver1.0.2 and earlier, as well as Aterm WG2600HP2 firmware Ver1.0.2 and earlier, are confirmed to be impacted by this CSRF vulnerability.
Exploitation Mechanism
Remote attackers can exploit the CSRF vulnerability by manipulating authenticated user sessions through forged requests, ultimately gaining control over administrator authentication.
Mitigation and Prevention
In this section, preventive measures to address CVE-2021-20621 are discussed.
Immediate Steps to Take
It is crucial to apply security patches and updates provided by NEC Corporation for the affected Aterm WG2600HP and Aterm WG2600HP2 devices. Additionally, users should monitor network activity for any suspicious behavior.
Long-Term Security Practices
To enhance security posture, organizations should implement robust network security measures, educate users on phishing tactics, and enforce multi-factor authentication for enhanced access control.
Patching and Updates
Regularly update the firmware of Aterm WG2600HP and Aterm WG2600HP2 devices with the latest security patches released by NEC Corporation to mitigate the CSRF vulnerability effectively.