CVE-2021-1512 Cisco SD-WAN Software Arbitrary File Corruption Vulnerability

Medium 4.4 Published 6 May 2021 Updated 8 Nov 2024

An authenticated local attacker can overwrite arbitrary files on the underlying host file system via insufficient input validation in the CLI.

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-2021-1512?

CVE-2021-1512 is a medium-severity path traversal vulnerability in Cisco Catalyst Sd-Wan Manager, published on 6 May 2021. 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 SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system of an affected system. This vulnerability is due to insufficient validation of the user-supplied input parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content in any arbitrary files that reside on the underlying host file system.

Weakness: CWE-552

Which versions are affected by CVE-2021-1512?

It affects 13 products.

Products include Cisco Catalyst Sd-Wan Manager, Cisco Sd-Wan Vbond Orchestrator, Cisco Sd-Wan Vmanage, Cisco Vedge-100b Firmware, Cisco Vedge 1000 Firmware, Cisco Vedge 100 Firmware and 7 more.

How do I fix CVE-2021-1512?

No fix has been published for CVE-2021-1512 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-2021-1512 being exploited?

There is no known exploitation of CVE-2021-1512 in the wild and no public exploit code.

All Cisco Catalyst Sd-Wan Manager vulnerabilities

Sources

Also known as GHSA-c5wr-523p-2hqc.