#VU12774 Improper input validation in F5 Networks products - CVE-2017-6156

Vulnerability identifier: #VU12774

Vulnerability risk: Medium

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

CVE-ID: CVE-2017-6156

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
BIG-IP LTM
BIG-IP AFM
BIG-IP Analytics
BIG-IP APM
BIG-IP ASM
BIG-IP GTM
BIG-IP PEM
BIG-IP AAM
BIG-IP DNS
BIG-IP Edge Gateway
BIG-IP Link Controller
BIG-IP WebAccelerator
BIG-IP WebSafe

Software vendor:
F5 Networks

The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.

The weakness exists due to improper input validation when the system is configured with a wildcard IPSec tunnel endpoint. A remote attacker can disrupt or impersonate the tunnels that have completed phase 1 IPSec negotiations.

Update to versions 13.0.0, 12.1.2, 11.6.1 HF2 or 11.5.6.

• https://support.f5.com/csp/article/K05263202