Vulnerability Details CVE-2018-15370
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.2%
CVSS Severity
CVSS v3 Score 6.8
CVSS v2 Score 4.6
References
Products affected by CVE-2018-15370
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cpe:2.3:o:cisco:ios_rom_monitor:15.1(2)sy3