CVE-2019-5134: High severity wago pfc200 vulnerability

Published Mar 10, 2020

Updated

An exploitable regular expression without anchors vulnerability exists in the Web-Based Management (WBM) authentication functionality of WAGO PFC200 versions 03.00.39(12) and 03.01.07(13), and WAGO PFC100 version 03.00.39(12). A specially crafted authentication request can bypass regular expression filters, resulting in sensitive information disclosure.

Affected Software

5 affected components

WAGO PFC200 Firmware=03.00.39\(12\)

WAGO PFC200 Firmware=03.01.07\(13\)

WAGO PFC200

WAGO PFC100 Firmware=03.00.39\(12\)

WAGO PFC100

Event History

Mar 10, 2020

CVE Published

via MITRE·11:41 PM

Data Sourced

via MITRE·11:41 PM

DescriptionWeakness

Frequently Asked Questions

What is CVE-2019-5134?

CVE-2019-5134 is an exploitable regular expression without anchors vulnerability in the Web-Based Management (WBM) authentication functionality of WAGO PFC200 versions 03.00.39(12) and 03.01.07(13), and WAGO PFC100 version 03.00.39(12).

What is the severity of CVE-2019-5134?

The severity of CVE-2019-5134 is high with a CVSS score of 7.5.

Which versions of WAGO PFC200 are affected by CVE-2019-5134?

WAGO PFC200 versions 03.00.39(12) and 03.01.07(13) are affected by CVE-2019-5134.

Is WAGO PFC200 version 03.00.39(12) vulnerable?

Yes, WAGO PFC200 version 03.00.39(12) is vulnerable to CVE-2019-5134.

How can the regular expression without anchors vulnerability be exploited?

The regular expression without anchors vulnerability can be exploited by sending a specially crafted authentication request that bypasses the regular expression.