CVE-2020-26078 Cisco IoT Field Network Director File Overwrite Vulnerability

Medium 4.9 Published 18 Nov 2020 Updated 13 Nov 2024

An authenticated remote attacker can overwrite files on Cisco IoT Field Network Director by crafting malicious API requests due to insufficient file system protections.

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-2020-26078?

CVE-2020-26078 is a medium-severity path traversal vulnerability in Cisco IoT Field Network Director (IoT-FND), published on 18 Nov 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in the file system of Cisco IoT Field Network Director (FND) could allow an authenticated, remote attacker to overwrite files on an affected system. The vulnerability is due to insufficient file system protections. An attacker could exploit this vulnerability by crafting API requests and sending them to an affected system. A successful exploit could allow the attacker to overwrite files on an affected system.

Weakness: CWE-22, CWE-73

Which versions are affected by CVE-2020-26078?

It affects 1 product.

Products include Cisco Iot Field Network Director.

How do I fix CVE-2020-26078?

No fix has been published for CVE-2020-26078 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-2020-26078 being exploited?

There is no known exploitation of CVE-2020-26078 in the wild and no public exploit code.

Sources

Also known as GHSA-v46x-3fg3-j892.