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F5 Networks BIG-IP : F5 TMM vulnerability (K05204103)

medium Nessus Plugin ID 144096

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Synopsis

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

Description

An early syncookie leaks forwarding flows if the virtual server has Clustered Multiprocessing (CMP)disabled and the BIG-IP AFM module is provisioned.(CVE-2020-5950)

Impact

The BIG-IP system resources may be excessively consumed and potentially leadto a failover event.Traffic processing is disrupted while the Traffic Management Microkernel (TMM) restarts. If the affected F5 device is configured as part of a device group, the system triggers a failover to the peer device.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K05204103.

See Also

https://my.f5.com/manage/s/article/K05204103

Plugin Details

Severity: Medium

ID: 144096

File Name: f5_bigip_SOL05204103.nasl

Version: 1.5

Type: local

Published: 12/11/2020

Updated: 11/2/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

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 Score Source: CVE-2020-5950

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/a:f5:big-ip_advanced_firewall_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: 12/10/2020

Reference Information

CVE: CVE-2020-5950

IAVA: 2020-A-0579-S