SB2021090819 - Code execution in Palo Alto PAN-OS
Published: September 8, 2021
Security Bulletin ID
SB2021090819
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2021-3054)
CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVSSv4: 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
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 update from vendor's website.