CVE-2021-1452
Assigner: cisco
Published: 2021-03-24T00:00:00
State: PUBLISHED
affected: product: Cisco IOS XE ROMMON Software 
vendor: Cisco
versions: status: affected
version: n/a
datePublic: 2021-03-24T00:00:00
descriptions: value: A vulnerability in the ROM Monitor (ROMMON) of Cisco IOS XE Software for Cisco Catalyst IE3200, IE3300, and IE3400 Rugged Series Switches, Cisco Catalyst IE3400 Heavy Duty Series Switches, and Cisco Embedded Services 3300 Series Switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. This vulnerability is due to incorrect validations of specific function arguments passed to a boot script when specific ROMMON variables are set. An attacker could exploit this vulnerability by setting malicious values for a specific ROMMON variable. A successful exploit could allow the attacker to execute unsigned code and bypass the image verification check during the secure boot process of an affected device. To exploit this vulnerability, the attacker would need to have unauthenticated, physical access to the device or obtain privileged access to the root shell on the device.
exploits: value: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. 
metrics: cvssV3_1: attackComplexity: LOW
attackVector: PHYSICAL
availabilityImpact: HIGH
baseScore: 6.8
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
problemTypes: descriptions: cweId: CWE-78
description: CWE-78
type: CWE
source: advisory: cisco-sa-iosxe-romvar-cmd-inj-N56fYbrw
defect: CSCvu65039
discovery: INTERNAL
title: Cisco IOS XE ROM Monitor Software for Cisco Industrial Switches OS Command Injection Vulnerability