F5 Networks BIG-IP : BIG-IP TMUI vulnerability (K43310520)

medium Nessus Plugin ID 142248

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Synopsis

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

Description

A stored cross-site scripting (XSS) vulnerability exists in an undisclosed page of the BIG-IP Traffic Management User Interface (TMUI), also known as the BIG-IP Configuration utility.
(CVE-2020-5940)

Impact

An authenticated attacker may be able to store JavaScript, whichis executed when another authenticated user accesses the Configuration utility. If the victim is an administrator user with AdvancedShell( bash ) access, an attacker can use Remote Code Execution to leverage a successful exploitof this vulnerability into a complete compromise of the BIG-IP system. All authenticated users can store this attack, regardless of role.

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K43310520.

Plugin Details

Severity: Medium

ID: 142248

File Name: f5_bigip_SOL43310520.nasl

Version: 1.7

Type: local

Family: F5 Networks Local Security Checks

Published: 11/3/2020

Updated: 11/2/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

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

CVSS Score Source: CVE-2020-5940

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

CPE: 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, 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

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-2020-5940

IAVA: 2020-A-0395-S

Detections

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