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F5 Networks BIG-IP : BIG-IP VE TMM vulnerability (K10251014)

critical Nessus Plugin ID 136131

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Synopsis

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

Description

BIG-IP Virtual Edition (VE) may expose a mechanism for remote attackers to access local daemons and bypass port lockdown settings.
(CVE-2020-5887)

Impact

The vulnerability can occur on BIG-IP VE systems with the following configuration :

An IPv6 forwarding virtual server

An IPv6 floating self IP address

A virtual server has the HTTP profile configured with http explicit proxy enabled and default-connect-handling set to allow

Hosts in adjacent networks may be able to bypass port lockdown settings on BIG-IP VE hosts.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K10251014.

See Also

https://my.f5.com/manage/s/article/K10251014

Plugin Details

Severity: Critical

ID: 136131

File Name: f5_bigip_SOL10251014.nasl

Version: 1.4

Type: local

Published: 4/30/2020

Updated: 11/2/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2020-5887

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip, 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

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: 4/29/2020

Vulnerability Publication Date: 4/30/2020

Reference Information

CVE: CVE-2020-5887