CVE-2023-20066 Cisco IOS XE Software Web UI Path Traversal Vulnerability

Medium 6.5 Published 23 Mar 2023 Updated 25 Oct 2024

Authenticated attackers can exploit a path traversal flaw in the Cisco IOS XE web UI to read files outside the intended directory.

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-2023-20066?

CVE-2023-20066 is a medium-severity path traversal vulnerability in Cisco Ios Xe, published on 23 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to perform a directory traversal and access resources that are outside the filesystem mountpoint of the web UI. This vulnerability is due to an insufficient security configuration. An attacker could exploit this vulnerability by sending a crafted request to the web UI. A successful exploit could allow the attacker to gain read access to files that are outside the filesystem mountpoint of the web UI. Note: These files are located on a restricted filesystem that is maintained for the web UI. There is no ability to write to any files on this filesystem.

Weakness: CWE-22, CWE-23

Which versions are affected by CVE-2023-20066?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2023-20066?

No fix has been published for CVE-2023-20066 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-2023-20066 being exploited?

There is no known exploitation of CVE-2023-20066 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-8cqx-pw8x-gx2v.