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CVE-2020-2033

GlobalProtect App: Missing certificate validation vulnerability can disclose pre-logon authentication cookie

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.1.4, 5.0.10
None on Exploit-DB, Metasploit or GitHub

Summary

When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Palo Alto Networks GlobalProtect App

    From 5.1 · fixed in 5.1.4; From 5.0 · fixed in 5.0.10

References 1

security.paloaltonetworks.com