#VU46575 Cryptographic issues in F5 Networks products - CVE-2020-5929

Vulnerability identifier: #VU46575

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2020-5929

CWE-ID: CWE-310

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
BIG-IP
BIG-IP DDHD
BIG-IP SSLO
BIG-IP LTM
BIG-IP AFM
BIG-IP Analytics
BIG-IP APM
BIG-IP ASM
BIG-IP FPS
BIG-IP GTM
BIG-IP PEM
BIG-IP AAM
BIG-IP DNS
BIG-IP Link Controller
BIG-IP Advanced WAF

Software vendor:
F5 Networks

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

The vulnerability exists due to usage of insecue Anonymous Diffie-Hellman (ADH) or Ephemeral Diffie-Hellman (DHE) ciphers. A remote attacker can use multiple crafted SSL/TLS handshakes to the vulnerable BIG-IP virtual server, recover the shared secret of past sessions and perform plaintext recovery of encrypted messages.

Install updates from vendor's website.

• https://support.f5.com/csp/article/K91158923