CVE-2022-31473 : Security Advisory and Response

A directory traversal vulnerability in BIG-IP APM Versions 16.1.x and 15.1.x allows authenticated attackers to bypass Appliance mode restrictions, potentially crossing security boundaries.

Understanding CVE-2022-31473

This CVE affects BIG-IP APM and poses a security risk for systems running in Appliance mode due to a directory traversal vulnerability. The impact of this vulnerability can lead to unauthorized bypassing of security controls.

What is CVE-2022-31473?

In BIG-IP Versions 16.1.x before 16.1.1 and 15.1.x before 15.1.4, authenticated attackers can exploit a directory traversal vulnerability within iApps when running in Appliance mode. This vulnerability allows them to cross security boundaries.

The Impact of CVE-2022-31473

The vulnerability in Appliance mode of BIG-IP APM Versions 16.1.x and 15.1.x enables attackers to circumvent restrictions, potentially compromising confidentiality.

Technical Details of CVE-2022-31473

The vulnerability has a CVSS v3.1 base score of 6.8, with a medium severity level. The attack complexity is low, with high privileges required for exploitation and a confidentiality impact of severity.

Vulnerability Description

The issue arises from improper limitation of a pathname to a restricted directory, enabling path traversal.

Affected Systems and Versions

BIG-IP APM 16.1.x versions prior to 16.1.1
BIG-IP APM 15.1.x versions prior to 15.1.4

Exploitation Mechanism

An authenticated attacker can exploit the vulnerability in an undisclosed page within iApps, bypassing security controls.

Mitigation and Prevention

It is crucial to take immediate steps to prevent potential exploitation and ensure the long-term security of BIG-IP APM deployments.

Immediate Steps to Take

Update affected BIG-IP APM instances to versions 16.1.1 and 15.1.4 or newer to mitigate the vulnerability.

Long-Term Security Practices

Implement stringent access controls and monitoring mechanisms to detect and prevent unauthorized access to BIG-IP APM configurations.

Patching and Updates

Regularly apply security patches provided by F5 to address known vulnerabilities and enhance system security.