SB2020050509 - Multiple vulnerabilities in F5 BIG-IP products

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Missing Encryption of Sensitive Data (CVE-ID: CVE-2020-5886)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the BIG-IP systems setup for connection mirroring in a High Availability (HA) pair transfers sensitive cryptographic objects over an insecure communications channel. A remote attacker can read and modify the Diffie-Hellman (DH) parameters used by data plane SSL/TLS enabled virtual servers.

2) Improper Authentication (CVE-ID: CVE-2020-5888)

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in TMM in Virtual Edition. A remote attacker on the local network can access local daemons and bypass port lockdown settings.

Remediation

Install update from vendor's website.

References

• https://support.f5.com/csp/article/K65720640
• https://support.f5.com/csp/article/K73274382