CVE-2018-15370 Cisco Catalyst 6800 Series Switches ROM Monitor Software Secure Boot Bypass Vulnerability
Local attackers can bypass Secure Boot validation on Cisco Catalyst 6800 switches to load malicious software images via ROMMON mode.
- 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-2018-15370?
CVE-2018-15370 is a medium-severity vulnerability in Cisco Catalyst 6800 Series Switches, published on 5 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in Cisco IOS ROM Monitor (ROMMON) Software for Cisco Catalyst 6800 Series Switches could allow an unauthenticated, local attacker to bypass Cisco Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to the presence of a hidden command in the affected software. An attacker could exploit this vulnerability by connecting to an affected device via the console, forcing the device into ROMMON mode, and writing a malicious pattern to a specific memory address on the device. A successful exploit could allow the attacker to bypass signature validation checks by Cisco Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.
Weakness: CWE-264
Which versions are affected by CVE-2018-15370?
It affects 1 product.
Products include Cisco Ios Rom Monitor.
How do I fix CVE-2018-15370?
No fix has been published for CVE-2018-15370 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-15370 being exploited?
There is no known exploitation of CVE-2018-15370 in the wild and no public exploit code.
Sources
Also known as GHSA-vhr4-h7vg-cgj6.