F5 Networks BIG-IP : SSL Forward Proxy vulnerability (K20134942)

High Nessus Plugin ID 118637


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


A remote attacker using undisclosed methods againstvirtual servers configured with a Client SSL or Server SSL profile that has the SSL Forward Proxy feature enabled can force the Traffic Management Microkernel (TMM) to leak memory. As a result, system memory usage increases over time, which may eventually cause a decrease in performance or a system reboot due to memory exhaustion.


This vulnerability allows a remote attacker to disrupt service.


Upgrade to one of the non-vulnerable versions listed in the F5 Solution K20134942.

See Also


Plugin Details

Severity: High

ID: 118637

File Name: f5_bigip_SOL20134942.nasl

Version: 1.3

Type: local

Published: 2018/11/02

Updated: 2019/07/17

Dependencies: 76940

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

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

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, Settings/ParanoidReport

Patch Publication Date: 2018/06/27

Vulnerability Publication Date: 2018/06/27

Reference Information

CVE: CVE-2018-5527