Resource exhaustion in Palo Alto PAN-OS - CVE-2020-2039
Published: September 10, 2020
Vulnerability identifier: #VU46574
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-2039
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to PAN-OS does not properly delete temporary files after upload. A remote non-authenticated attacker can exhaust all resources by constantly downloading large files via the management web interface.
Affected software
Palo Alto PAN-OS
How to mitigate CVE-2020-2039
Install updates from vendor's website.
Palo Alto PAN-OS - addressed in versions 8.1.16, 9.0.10, 9.1.4, 10.0.1