F5 Networks BIG-IP : TMM WebSocket vulnerability (K11718033)

High Nessus Plugin ID 118630


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


In some circumstances, the Traffic Management Microkernel (TMM) does not properly handle certain malformed WebSocket requests/responses, which allows remote attackers to cause a denial of service (DoS) or possible remote code execution on the BIG-IP system. (CVE-2018-5504)


This vulnerability allowsunauthorized remote code execution and disruption of service through an unspecified crafted WebSocket packet.


Upgrade to one of the non-vulnerable versions listed in the F5 Solution K11718033.

See Also


Plugin Details

Severity: High

ID: 118630

File Name: f5_bigip_SOL11718033.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: 9.3

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

CVSS v3.0

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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: 2018/03/21

Vulnerability Publication Date: 2018/03/22

Reference Information

CVE: CVE-2018-5504