#VU68872 Improper Verification of Cryptographic Signature in Cisco IOS XE - CVE-2020-3209
Published: November 1, 2022
Vulnerability identifier: #VU68872
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-3209
CWE-ID: CWE-347
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco IOS XE
Cisco IOS XE
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a local attacker to compromise the target system.
The vulnerability exists due to due to an improper check on the area of code that manages the verification of the digital signatures of system image files during the initial boot process. An attacker with physical access can install and boot a malicious software image or execute unsigned binaries on the target device.
Remediation
Install updates from vendor's website.