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F5 Networks BIG-IP : TMM vulnerability (K19784568)

high Nessus Plugin ID 93100

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Synopsis

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

Description

Virtual servers in F5 BIG-IP systems 11.2.1 HF11 through HF15, 11.4.1 HF4 through HF10, 11.5.3 through 11.5.4, 11.6.0 HF5 through HF7, and 12.0.0, when configured with a TCP profile, allow remote attackers to cause a denial of service (Traffic Management Microkernel restart) via crafted network traffic. (CVE-2016-5023)

Impact

The Traffic Management Microkernel (TMM) may restart and temporarily fail to process traffic. Virtual servers configured with a TCP profile are vulnerable to this issue. Additionally, BIG-IP systems running 11.5.x and earlier that are configured with TCP profile settings Slow Start disabled (enabled by default) and Congestion Metrics Cache enabled (enabled by default) have a higher risk of exposure.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K19784568.

See Also

https://support.f5.com/csp/article/K19784568

Plugin Details

Severity: High

ID: 93100

File Name: f5_bigip_SOL19784568.nasl

Version: 2.9

Type: local

Published: 8/25/2016

Updated: 5/9/2019

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

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_wan_optimization_manager, cpe:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip, cpe:/h:f5:big-ip_protocol_security_manager

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/11/2016

Vulnerability Publication Date: 8/26/2016

Reference Information

CVE: CVE-2016-5023