CVE-2022-20862 Cisco Unified Communications Manager Arbitrary File Read Vulnerability

Medium 4.3 Published 6 Jul 2022 Updated 6 Nov 2024

Authenticated attackers can read arbitrary files on the operating system via crafted HTTP requests in Cisco Unified Communications Manager.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-20862?

CVE-2022-20862 is a medium-severity path traversal vulnerability in Cisco Unified Communications Manager, published on 6 Jul 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to read arbitrary files on the underlying operating system of an affected device. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to an affected system. A successful exploit could allow the attacker to access sensitive files on the operating system.

Weakness: CWE-22, CWE-23

Which versions are affected by CVE-2022-20862?

It affects 1 product.

Products include Cisco Unified Communications Manager.

How do I fix CVE-2022-20862?

No fix has been published for CVE-2022-20862 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-20862 being exploited?

There is no known exploitation of CVE-2022-20862 in the wild and no public exploit code.

All Cisco Unified Communications Manager vulnerabilities

Sources

Also known as GHSA-cgh5-p6gg-prp3.