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F5 Networks BIG-IP : BIG-IP Diameter vulnerability (K82530456)

high Nessus Plugin ID 142264

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Synopsis

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

Description

When processing Capabilities-Exchange-Answer (CEA) packets withcertain attributes from the Policy and Charging Rules Function (PCRF) server, the Traffic Management Microkernel (TMM) may generate a core file and restart.(CVE-2020-5942)

Impact

This vulnerability affects only virtualservers configured with the Diameter Endpoint profile with Gx capability to connect to a PCRF.When attackers exploit thevulnerability, TMMcreates a core file and restarts. As a result, the BIG-IP system fails to process traffic and fails over to its high availability (HA) peer, if configured.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K82530456.

See Also

https://my.f5.com/manage/s/article/K82530456

Plugin Details

Severity: High

ID: 142264

File Name: f5_bigip_SOL82530456.nasl

Version: 1.8

Type: local

Published: 11/3/2020

Updated: 11/3/2023

Configuration: Enable paranoid mode

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-2020-5942

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_policy_enforcement_manager, cpe:/h:f5:big-ip

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/2/2020

Vulnerability Publication Date: 11/5/2020

Reference Information

CVE: CVE-2020-5942