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Cisco IOS: CVE-2018-15370: Cisco Catalyst 6800 Series Switches ROM Monitor Software Secure Boot Bypass Vulnerability

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Cisco IOS: CVE-2018-15370: Cisco Catalyst 6800 Series Switches ROM Monitor Software Secure Boot Bypass Vulnerability

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
10/05/2018
Created
03/19/2019
Added
10/11/2018
Modified
01/14/2019

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.

Solution(s)

  • cisco-ios-upgrade-latest

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