Improper Certificate Validation in GlobalProtect Agent - CVE-2020-2033
Published: June 11, 2020 / Updated: June 11, 2020
Vulnerability identifier: #VU28966
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-2033
CWE-ID: CWE-295
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Palo Alto Networks, Inc.
Affected software:
GlobalProtect Agent
GlobalProtect Agent
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to a missing certification validation, when the pre-logon feature is enabled. A remote attacker on the local network can perform a MitM attack, disclose the pre-logon authentication cookie and access the GlobalProtect Server as allowed by configured Security rules for the "pre-login" user.
How to mitigate CVE-2020-2033
Install updates from vendor's website.