F5 Networks BIG-IP : BIG-IP APM RADIUS authentication vulnerability (K11400411)

medium Nessus Plugin ID 139815
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Synopsis

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

Description

RADIUS authentication leaks memory when the username for authentication is not set.(CVE-2020-5924)

Impact

This issue may lead to excessive memory consumption. On a BIG-IP system that is configured for high availability (HA), this vulnerability may cause a failover event and temporarily disrupt services.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K11400411.

See Also

https://support.f5.com/csp/article/K11400411

Plugin Details

Severity: Medium

ID: 139815

File Name: f5_bigip_SOL11400411.nasl

Version: 1.5

Type: local

Published: 8/26/2020

Updated: 12/11/2020

Dependencies: f5_bigip_detect.nbin

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2020-5924

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_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, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 8/25/2020

Reference Information

CVE: CVE-2020-5924

IAVA: 2020-A-0395-S