Palo Alto Networks addressed a critical vulnerability, tracked as CVE-2020-2021, in the operating system (PAN‑OS) that powers its next-generation firewalls that could allow unauthenticated network-based attackers to bypass authentication.
“When Security Assertion Markup Language (SAML) authentication is enabled and the ‘Validate Identity Provider Certificate’ option is disabled (unchecked), improper verification of signatures in PAN-OS SAML authentication enables an unauthenticated network-based attacker to access protected resources,” reads the security advisory published by the company. “The attacker must have network access to the vulnerable server to exploit this vulnerability.”
