CVE-2018-0196 Path traversal in Cisco IOS XE

Medium 4.9 Published 28 Mar 2018 Updated 2 Dec 2024

An authenticated remote attacker can write arbitrary files to the operating system via the web UI due to insufficient input validation.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-0196?

CVE-2018-0196 is a medium-severity path traversal vulnerability in Cisco Ios Xe, published on 28 Mar 2018. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in the web-based user interface (web UI) of Cisco IOS XE Software could allow an authenticated, remote attacker to write arbitrary files to the operating system of an affected device. The vulnerability is due to insufficient input validation of HTTP requests that are sent to the web UI of the affected software. An attacker could exploit this vulnerability by sending a malicious HTTP request to the web UI of the affected software. A successful exploit could allow the attacker to write arbitrary files to the operating system of an affected device. Cisco Bug IDs: CSCvb22645.

Weakness: CWE-20

Which versions are affected by CVE-2018-0196?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2018-0196?

No fix has been published for CVE-2018-0196 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-2018-0196 being exploited?

There is no known exploitation of CVE-2018-0196 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-q28h-h5rj-w8fv.