CVE-2019-1726 Cisco NX-OS Software CLI Bypass to Internal Service Vulnerability
Authenticated local attackers can bypass CLI restrictions to access internal services like NX-API via insufficient argument validation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1726?
CVE-2019-1726 is a medium-severity command injection vulnerability in Cisco Nx-Os, published on 15 May 2019. 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 NX-OS Software could allow an authenticated, local attacker to access internal services that should be restricted on an affected device, such as the NX-API. The vulnerability is due to insufficient validation of arguments passed to a certain CLI command. An attacker could exploit this vulnerability by including malicious input as the argument to the affected command. A successful exploit could allow the attacker to bypass intended restrictions and access internal services of the device. An attacker would need valid device credentials to exploit this vulnerability.
Which versions are affected by CVE-2019-1726?
It affects 1 product.
Products include Cisco Nx-Os.
How do I fix CVE-2019-1726?
No fix has been published for CVE-2019-1726 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2019-1726 being exploited?
There is no known exploitation of CVE-2019-1726 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-vf5v-h8cw-pwgf.