CVE-2021-1385 Cisco IOx Application Environment Path Traversal Vulnerability

Medium 6.5 Published 24 Mar 2021 Updated 8 Nov 2024

Authenticated attackers can exploit improper URI validation in Cisco IOx to read or write arbitrary files on the host system.

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-2021-1385?

CVE-2021-1385 is a medium-severity path traversal vulnerability in Cisco Ios, published on 24 Mar 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to conduct directory traversal attacks and read and write files on the underlying operating system or host system. This vulnerability occurs because the device does not properly validate URIs in IOx API requests. An attacker could exploit this vulnerability by sending a crafted API request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to read or write arbitrary files on the underlying operating system.

Weakness: CWE-22

Which versions are affected by CVE-2021-1385?

It affects 2 products.

Products include Cisco Ios, Cisco Ios Xe.

How do I fix CVE-2021-1385?

No fix has been published for CVE-2021-1385 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-2021-1385 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-1385 exists.

All Cisco Ios vulnerabilities

Sources

Also known as GHSA-hrv5-5xv9-vp4p.