#VU56407 Time-of-check Time-of-use (TOCTOU) Race Condition in Palo Alto PAN-OS - CVE-2021-3054
Published: September 8, 2021
Vulnerability identifier: #VU56407
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3054
CWE-ID: CWE-367
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Palo Alto PAN-OS
Palo Alto PAN-OS
Software vendor:
Palo Alto Networks, Inc.
Palo Alto Networks, Inc.
Description
The vulnerability allows a remote user to execute arbitrary code on the system.
The vulnerability exists due to a race condition in the Palo Alto Networks PAN-OS web interface during plugin installation. A remote authenticated administrator with permission to upload plugins can execute arbitrary code with root user privileges.
Remediation
Install updates from vendor's website.