PAN-OS: TLS 1.0 usage for certain communications with Palo Alto Networks cloud delivered services

Certain communication between PAN-OS and cloud-delivered services inadvertently use TLS 1.0, which is known to be a cryptographically weak protocol.

These cloud services include Cortex Data Lake, the Customer Support Portal, and the Prisma Access infrastructure.

Conditions required for exploitation of known TLS 1.0 weaknesses do not exist for the communication between PAN-OS and cloud-delivered services. We do not believe that any communication is impacted as a result of known attacks against TLS 1.0.

Work around:
Since TLS 1.0 weaknesses are exploited by the man-in-the-middle type of attackers, ensuring security of the networks reduces risks of exploitation of these issues.