vBulletin CVE-2019-16759 Bypass Remote Code Execution (CVE-2020-17496) (direct check)

critical Nessus Plugin ID 139457

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Synopsis

A bulletin board system running on the remote web server has a remote code execution vulnerability.

Description

The version of vBulletin running on the remote host is affected by an input-validation flaw in the ajax/render/widget_php API that allows for remote code execution. This plugin tests for a bypass to the fix for CVE-2019-16759.

Solution

Disable PHP widgets or contact the vendor.

Plugin Details

Severity: Critical

ID: 139457

File Name: vbulletin_CVE-2019-16759_bypass_direct.nasl

Version: 1.11

Type: remote

Family: CGI abuses

Published: 8/10/2020

Updated: 6/4/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.2

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

CVSS Score Source: CVE-2020-17496

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

Vulnerability Information

CPE: cpe:/a:vbulletin:vbulletin

Required KB Items: www/vBulletin

Excluded KB Items: Settings/disable_cgi_scanning

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Vulnerability Publication Date: 8/9/2020

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Exploitable With

CANVAS (CANVAS)

Metasploit (vBulletin 5.x /ajax/render/widget_tabbedcontainer_tab_panel PHP remote code execution.)

Reference Information

CVE: CVE-2019-16759, CVE-2020-17496

Detections

Analytics