CVE-2020-3381 Cisco SD-WAN vManage Software Directory Traversal Vulnerability

High 8.8 Published 16 Jul 2020 Updated 15 Nov 2024

Authenticated attackers can exploit directory traversal in Cisco SD-WAN vManage to read or modify arbitrary files on the system.

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-2020-3381?

CVE-2020-3381 is a high-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 management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct directory traversal attacks and obtain read and write access to sensitive files on a targeted system. The vulnerability is due to a lack of proper validation of files that are uploaded to an affected device. An attacker could exploit this vulnerability by uploading a crafted file to an affected system. An exploit could allow the attacker to view or modify arbitrary files on the targeted system.

Weakness: CWE-22

Which versions are affected by CVE-2020-3381?

It affects 1 product.

Products include Cisco Sd-Wan Firmware.

How do I fix CVE-2020-3381?

No fix has been published for CVE-2020-3381 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-2020-3381 being exploited?

There is no known exploitation of CVE-2020-3381 in the wild and no public exploit code.

Sources

Also known as GHSA-xrg6-2px8-pv79.