CVE-2020-3237 Cisco IOx Application Framework Arbitrary File Overwrite Vulnerability
An authenticated local attacker can overwrite arbitrary files in the virtual instance by exploiting insufficient path restrictions in the Cisco IOx Application Framework.
- 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-2020-3237?
CVE-2020-3237 is a medium-severity path traversal vulnerability in Cisco IOx, published on 3 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the Cisco Application Framework component of the Cisco IOx application environment could allow an authenticated, local attacker to overwrite arbitrary files in the virtual instance that is running on the affected device. The vulnerability is due to insufficient path restriction enforcement. An attacker could exploit this vulnerability by including a crafted file in an application package. An exploit could allow the attacker to overwrite files.
Weakness: CWE-59
Which versions are affected by CVE-2020-3237?
It affects 1 product.
Products include Cisco Iox.
How do I fix CVE-2020-3237?
No fix has been published for CVE-2020-3237 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-2020-3237 being exploited?
There is no known exploitation of CVE-2020-3237 in the wild and no public exploit code.
Other vulnerabilities in Cisco IOx
- CVE-2017-3853 Memory corruption in Cisco IOx
- CVE-2020-3238 Cisco IOx Application Framework Arbitrary File Creation Vulnerability
- CVE-2017-3852 Path traversal in Cisco Application-Hosting Framework
- CVE-2017-3851 Path traversal in Cisco Application-Hosting Framework
- CVE-2016-9199 Path traversal in Cisco IOx
Sources
Also known as GHSA-wpf6-xqrg-67f3.