CVE-2021-22983 : Security Advisory and Response
Learn about CVE-2021-22983 affecting F5 BIG-IP AFM versions 15.1.x, 14.1.x, and 13.1.x, exposing users to cross-site scripting attacks. Find mitigation steps and patches.
F5 Networks' BIG-IP AFM software versions 15.1.x before 15.1.1, 14.1.x before 14.1.3.1, and 13.1.x before 13.1.3.5 are vulnerable to a cross-site scripting (XSS) attack, potentially affecting authenticated users of the Configuration utility for AFM.
Understanding CVE-2021-22983
This CVE identifies a security issue in BIG-IP AFM software versions that could lead to a cross-site scripting vulnerability.
What is CVE-2021-22983?
CVE-2021-22983 highlights a risk where authenticated users accessing the Configuration utility for AFM could be exposed to a cross-site scripting attack by interacting with a maliciously-crafted URL.
The Impact of CVE-2021-22983
The vulnerability in CVE-2021-22983 could allow threat actors to execute malicious scripts in the context of the user's session, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2021-22983
The technical aspects of this CVE include the vulnerability description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability lies in the failure to sanitize inputs received from users when accessing the Configuration utility for AFM, enabling malicious actors to inject and execute scripts.
Affected Systems and Versions
BIG-IP AFM versions 15.1.x before 15.1.1, 14.1.x before 14.1.3.1, and 13.1.x before 13.1.3.5 are confirmed to be impacted by this CVE.
Exploitation Mechanism
Exploiting CVE-2021-22983 requires authenticated access to the Configuration utility for AFM and tricking the user into clicking on a specially crafted URL containing malicious code.
Mitigation and Prevention
To address CVE-2021-22983, immediate steps, long-term security practices, and the importance of patching and updates are crucial.
Immediate Steps to Take
Organizations should restrict access to the Configuration utility, ensure users are cautious with URLs, and implement strong web security controls.
Long-Term Security Practices
In the long run, a robust security training program, continuous monitoring for unusual activities, and regular security assessments are essential.
Patching and Updates
F5 Networks has released patches to address the vulnerability. It is vital for organizations to apply these patches promptly to safeguard their systems.