CVE-2020-3236 Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability

Medium 6.7 Published 18 Jun 2020 Updated 15 Nov 2024

Authenticated local attackers can exploit path traversal in Cisco NFVIS CLI to gain root access and read or modify arbitrary files.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-3236?

CVE-2020-3236 is a medium-severity path traversal vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 18 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the CLI of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, local attacker to gain root shell access to the underlying operating system and overwrite or read arbitrary files. The attacker would need valid administrative credentials. This vulnerability is due to improper input validation of CLI command arguments. An attacker could exploit this vulnerability by using path traversal techniques when executing a vulnerable command. A successful exploit could allow the attacker to gain root shell access to the underlying operating system and overwrite or read arbitrary files on an affected device.

Weakness: CWE-22

Which versions are affected by CVE-2020-3236?

It affects 1 product.

Products include Cisco Enterprise Nfv Infrastructure Software.

How do I fix CVE-2020-3236?

No fix has been published for CVE-2020-3236 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-2020-3236 being exploited?

There is no known exploitation of CVE-2020-3236 in the wild and no public exploit code.

Sources

Also known as GHSA-hg4p-q65f-q54v.