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F5 Networks BIG-IP : BIG-IP TMM vulnerability (K45421311)

high Nessus Plugin ID 139825

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Synopsis

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

Description

Undisclosed internally-generated User Datagram Protocol (UDP) traffic may cause the Traffic Management Microkernel (TMM) to restart under some circumstances.(CVE-2020-5925)

A BIG-IP system experiencing this vulnerability may log the following error message to the /var/log/tmm file :

Assertion 'sub_agent_id matches.' failed.

Impact

In rare circumstances, it may be possible for unauthenticated remote attackers to manipulate data plane traffic, such as TCP or UDP traffic, through a virtual serverin a way that causes TMM to restart.This restart is due to internally generated UDP trafficgenerated in response to the data plane trafficbeing mis-handled.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K45421311.

See Also

https://my.f5.com/manage/s/article/K45421311

Plugin Details

Severity: High

ID: 139825

File Name: f5_bigip_SOL45421311.nasl

Version: 1.9

Type: local

Published: 8/26/2020

Updated: 5/10/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2020-5925

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_domain_name_system, 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:/h:f5:big-ip

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/25/2020

Vulnerability Publication Date: 8/26/2020

Reference Information

CVE: CVE-2020-5925

IAVA: 2020-A-0573-S