CVE-2022-23026 Explained : Impact and Mitigation

F5 Networks has reported a vulnerability, CVE-2022-23026, in BIG-IP ASM & Advanced WAF. An authenticated user with low privileges can trigger an increase in disk resource utilization by uploading data using a specific REST endpoint.

Understanding CVE-2022-23026

This CVE impacts BIG-IP ASM & Advanced WAF versions 16.1.x before 16.1.2, 15.1.x before 15.1.4.1, 14.1.x before 14.1.4.5, and all versions of 13.1.x and 12.1.x.

What is CVE-2022-23026?

The vulnerability allows an authenticated user with limited privileges to upload data through an undisclosed REST endpoint, leading to a surge in disk resource usage.

The Impact of CVE-2022-23026

This security flaw can be exploited by an attacker with low permissions to cause disk resource utilization to spike, potentially affecting system performance.

Technical Details of CVE-2022-23026

Vulnerability Description

The vulnerability resides in BIG-IP ASM & Advanced WAF versions mentioned above, allowing low-privileged users to manipulate a REST endpoint and affect disk resource usage.

Affected Systems and Versions

BIG-IP ASM & Advanced WAF versions 16.1.x before 16.1.2, 15.1.x before 15.1.4.1, 14.1.x before 14.1.4.5, and all versions of 13.1.x and 12.1.x are impacted by this CVE.

Exploitation Mechanism

An authenticated user, such as a guest, can exploit the undisclosed REST endpoint to upload data, causing a significant increase in disk resource utilization.

Mitigation and Prevention

Immediate Steps to Take

Users are advised to update their systems to the latest patched versions to mitigate the risk of exploitation.

Long-Term Security Practices

Implement least privilege access controls and regularly monitor disk resource usage to detect any anomalies in system behavior.

Patching and Updates

Ensure timely installation of security patches released by F5 Networks to address this vulnerability and enhance system security.