CVE-2019-5149 Information

Description

The WBM web application on firmwares prior to 03.02.02 and 03.01.07 on the WAGO PFC100 and PFC2000 respectively runs on a lighttpd web server and makes use of the FastCGI module which is intended to provide high performance for all Internet applications without the penalties of Web server APIs. However the default configuration of this module appears to limit the number of concurrent php-cgi processes to two which can be abused to cause a denial of service of the entire web server. This affects WAGO PFC200 Firmware version 03.00.39(12) and version 03.01.07(13) and WAGO PFC100 Firmware version 03.00.39(12) and version 03.02.02(14).

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0939

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5