CVE-2017-12333 Security feature bypass in Cisco NX-OS
An authenticated local attacker can bypass signature verification to load unsigned software images on Cisco NX-OS devices.
- 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-2017-12333?
CVE-2017-12333 is a medium-severity vulnerability in Cisco Nx-Os, published on 30 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading a software image. The vulnerability is due to insufficient NX-OS signature verification for software images. An authenticated, local attacker could exploit this vulnerability to bypass signature verification and load a crafted, unsigned software image on a targeted device. The attacker would need valid administrator credentials to perform this exploit. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Unified Computing System Manager. Cisco Bug IDs: CSCvf25045, CSCvf31495.
Weakness: CWE-347
Which versions are affected by CVE-2017-12333?
It affects 2 products.
Products include Cisco Nx-Os, Cisco Unified Computing System.
How do I fix CVE-2017-12333?
No fix has been published for CVE-2017-12333 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-12333 being exploited?
There is no known exploitation of CVE-2017-12333 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-hq3m-jwg9-rv8q.