F5 Networks BIG-IP : BIG-IP Client SSL vulnerability (K43121447)

Medium Nessus Plugin ID 118660

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

Attackers may be able to disrupt services on the BIG-IP system with maliciously crafted client certificate. This vulnerability affects virtual servers associated with Client SSL profile which enables the use of client certificate authentication. Client certificate authentication is not enabled by default in Client SSL profile. There is no control plane exposure. (CVE-2018-5502)

Impact

The BIG-IP system may temporarily fail to process traffic as it recovers from a Traffic Management Microkernel (TMM) restart, and devices configured as a high-availability (HA) pair may fail over.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K43121447.

See Also

https://support.f5.com/csp/#/article/K43121447

Plugin Details

Severity: Medium

ID: 118660

File Name: f5_bigip_SOL43121447.nasl

Version: 1.1

Type: local

Published: 2018/11/02

Modified: 2018/11/02

Dependencies: 76940

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Patch Publication Date: 2018/03/21

Reference Information

CVE: CVE-2018-5502