CVE-2019-1880 Cisco Unified Computing System BIOS Signature Bypass Vulnerability
An authenticated local attacker can bypass BIOS signature verification to install compromised firmware on Cisco UCS servers.
- 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-2019-1880?
CVE-2019-1880 is a medium-severity vulnerability in Cisco Unified Computing System (Managed), published on 5 Jun 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 BIOS upgrade utility of Cisco Unified Computing System (UCS) C-Series Rack Servers could allow an authenticated, local attacker to install compromised BIOS firmware on an affected device. The vulnerability is due to insufficient validation of the firmware image file. An attacker could exploit this vulnerability by executing the BIOS upgrade utility with a specific set of options. A successful exploit could allow the attacker to bypass the firmware signature-verification process and install compromised BIOS firmware on an affected device.
Weakness: CWE-345
Which versions are affected by CVE-2019-1880?
It affects 1 product.
Products include Cisco Unified Computing System Server Firmware.
How do I fix CVE-2019-1880?
No fix has been published for CVE-2019-1880 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1880 being exploited?
There is no known exploitation of CVE-2019-1880 in the wild and no public exploit code.
Sources
Also known as GHSA-jhpv-9w3g-h4m8.