CVE-2017-12331 Security feature bypass in Cisco NX-OS
An authenticated local attacker with admin credentials can bypass signature verification to load unsigned software patches 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-2017-12331?
CVE-2017-12331 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 patch. The vulnerability is due to insufficient NX-OS signature verification for software patches. An authenticated, local attacker could exploit this vulnerability to bypass signature verification and load a crafted, unsigned software patch 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: CSCvf16494, CSCvf23655.
Weakness: CWE-347
Which versions are affected by CVE-2017-12331?
It affects 2 products.
Products include Cisco Nx-Os, Cisco Unified Computing System.
How do I fix CVE-2017-12331?
No fix has been published for CVE-2017-12331 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-12331 being exploited?
There is no known exploitation of CVE-2017-12331 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-8hxx-pmwx-5vvq.