Buffer overflow in Palo Alto PAN-OS - CVE-2020-2040
Published: September 10, 2020
Vulnerability identifier: #VU46576
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2020-2040
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Palo Alto Networks, Inc.
Affected software:
Palo Alto PAN-OS
Palo Alto PAN-OS
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing requests to the Captive Portal or Multi-Factor Authentication interface. A remote attacker can send specially crafted request to the system, trigger memory corruption and execute arbitrary code on the target system with root privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system bu requires that Captive Portal or Multi-Factor Authentication is enabled.
How to mitigate CVE-2020-2040
Install updates from vendor's website.