CVE-2019-1589 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Unmeasured Boot Vulnerability
Local attackers with physical access can view cleartext disk encryption keys, enabling custom boot processes or further attacks on Cisco Nexus switches.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1589?
CVE-2019-1589 is a medium-severity vulnerability in Cisco Nx-Os, 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 Trusted Platform Module (TPM) functionality of software for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, local attacker with physical access to view sensitive information on an affected device. The vulnerability is due to a lack of proper data-protection mechanisms for disk encryption keys that are used within the partitions on an affected device hard drive. An attacker could exploit this vulnerability by obtaining physical access to the affected device to view certain cleartext keys. A successful exploit could allow the attacker to execute a custom boot process or conduct further attacks on an affected device.
Which versions are affected by CVE-2019-1589?
It affects 1 product.
Products include Cisco Nx-Os.
How do I fix CVE-2019-1589?
No fix has been published for CVE-2019-1589 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1589 being exploited?
There is no known exploitation of CVE-2019-1589 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-6vcw-rc44-857p.