Palo Alto Networks PAN-OS Authentication Bypass Vulnerability (CVE-2020-2021)
Severity: critical · Patch status: patched · Since 2022-03-25 · CVE-2020-2021
Palo Alto Networks PAN-OS contains a vulnerability in SAML which allows an attacker to bypass authentication. CISA added CVE-2020-2021 to its Known Exploited Vulnerabilities catalog on Mar 25, 2022, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Apr 15, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
