CVE-2021-21522 : Vulnerability Insights and Analysis
Learn about CVE-2021-21522, a Credentials Management vulnerability in Dell BIOS that allows unauthorized access to sensitive information. Get mitigation steps and best practices.
Dell BIOS contains a Credentials Management issue that allows a local authenticated malicious user to potentially exploit the vulnerability. This could lead to unauthorized access to sensitive information on an NVMe storage by resetting the BIOS password via the Manageability Interface.
Understanding CVE-2021-21522
This CVE involves a Credentials Management vulnerability in Dell BIOS, impacting the security of the affected systems.
What is CVE-2021-21522?
The CVE-2021-21522 refers to a Credentials Management issue in Dell BIOS, which could be exploited by a local authenticated attacker to bypass security measures.
The Impact of CVE-2021-21522
The impact of this vulnerability is significant, as it allows unauthorized access to sensitive data stored on NVMe storage by resetting the BIOS password.
Technical Details of CVE-2021-21522
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability in Dell BIOS enables a local authenticated attacker to gain access to sensitive information by manipulating the Manageability Interface.
Affected Systems and Versions
The affected product is CPG BIOS by Dell with versions less than 1.13.0.
Exploitation Mechanism
A local authenticated malicious user can exploit this vulnerability to reset the BIOS password, resulting in unauthorized access to sensitive data on NVMe storage.
Mitigation and Prevention
To address CVE-2021-21522, the following mitigation strategies are recommended.
Immediate Steps to Take
Users should update their BIOS to version 1.13.0 or higher to mitigate the vulnerability. Additionally, restricting access to the Manageability Interface can help prevent unauthorized password resets.
Long-Term Security Practices
Implementing strong password policies and regularly updating system firmware can enhance overall security posture.
Patching and Updates
Regularly check for BIOS updates and ensure timely installation of patches to protect systems from known vulnerabilities.