CVE-2019-1803 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Root Privilege Escalation Vulnerability
An authenticated local administrator can exploit overly permissive file permissions to execute arbitrary commands as root on Cisco Nexus 9000 switches.
- 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-2019-1803?
CVE-2019-1803 is a high-severity vulnerability in Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode, published on 3 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 filesystem management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an authenticated, local attacker with administrator rights to gain elevated privileges as the root user on an affected device. The vulnerability is due to overly permissive file permissions of specific system files. An attacker could exploit this vulnerability by authenticating to an affected device, creating a crafted command string, and writing this crafted string to a specific file location. A successful exploit could allow the attacker to execute arbitrary operating system commands as root on an affected device. The attacker would need to have valid administrator credentials for the device.
Which versions are affected by CVE-2019-1803?
It affects 1 product.
Products include Cisco Nexus 9000 Series Application Centric Infrastructure.
How do I fix CVE-2019-1803?
No fix has been published for CVE-2019-1803 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1803 being exploited?
There is no known exploitation of CVE-2019-1803 in the wild and no public exploit code.
Sources
Also known as GHSA-6gh6-63xx-crf3.