F5 Networks BIG-IP : BIG-IP APM ACL bypass vulnerability (K75540265)

medium Nessus Plugin ID 150460
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Synopsis

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

Description

The version of F5 Networks BIG-IP installed on the remote host is prior to 13.1.4 / 14.1.4.1 / 15.1.3 / 16.0.1.2 / 16.1.0. It is, therefore, affected by a vulnerability as referenced in the K75540265 advisory.

- On BIG-IP APM versions 15.1.x before 15.1.3, 14.1.x before 14.1.4.1, 13.1.x before 13.1.4, and all versions of 16.0.x, 12.1.x, and 11.6.x, an attacker may be able to bypass APM's internal restrictions and retrieve static content that is hosted within APM by sending specifically crafted requests to an APM Virtual Server. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated. (CVE-2021-23016)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K75540265.

See Also

https://support.f5.com/csp/article/K75540265

Plugin Details

Severity: Medium

ID: 150460

File Name: f5_bigip_SOL75540265.nasl

Version: 1.6

Type: local

Published: 6/10/2021

Updated: 10/28/2021

Dependencies: f5_bigip_detect.nbin

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2021-23016

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:P/I:N/A:N

Temporal Vector: CVSS2#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:L/I:N/A:N

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

Vulnerability Information

CPE: cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*, cpe:2.3: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: 4/28/2021

Vulnerability Publication Date: 3/31/2021

Reference Information

CVE: CVE-2021-23016

IAVA: 2021-A-0155