Permissions, Privileges, and Access Controls in Int15ServiceSmm - CVE-2021-42060
Published: February 3, 2022
Vulnerability identifier: #VU60269
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-42060
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the SMM callout issue. A remote attacker can hijack execution flow of a code running in System Management Mode and escalate privileges.
Affected software
Int15ServiceSmm
PA-3200
PA-5200
PA-7200
PA-3200
PA-5200
PA-7200
How to mitigate CVE-2021-42060
Install updates from vendor's website.
Int15ServiceSmm - addressed in versions 5.0: 05.08.49, 5.1: 05.16.49, 5.2: 05.23.22, 5.3: 05.32.22