CVE-2020-3401 Cisco SD-WAN vManage Software Path Traversal Vulnerability

Medium 6.5 Published 16 Jul 2020 Updated 13 Nov 2024

Authenticated attackers can exploit insufficient validation to perform path traversal and read arbitrary sensitive files on Cisco SD-WAN vManage systems.

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-2020-3401?

CVE-2020-3401 is a medium-severity path traversal vulnerability in Cisco SD-WAN vManage, published on 16 Jul 2020. 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 SD-WAN vManage Software could allow an authenticated, remote attacker to conduct path traversal attacks and obtain read access to sensitive files on an affected system. The vulnerability is due to insufficient validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to the affected system. A successful exploit could allow the attacker to view arbitrary files on the affected system.

Weakness: CWE-22

Which versions are affected by CVE-2020-3401?

It affects 1 product.

Products include Cisco Sd-Wan Firmware.

How do I fix CVE-2020-3401?

No fix has been published for CVE-2020-3401 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-2020-3401 being exploited?

There is no known exploitation of CVE-2020-3401 in the wild and no public exploit code.

Sources

Also known as GHSA-4xh3-cv46-pph4.