QID 590993

Date Published: 2022-08-26

QID 590993: WAGO PFC100/200 Web-Based Management (WBM) Authentication Regex Information Disclosure Vulnerability (TALOS-2019-0923)

AFFECTED PRODUCTS
WAGO PFC200 Firmware version 03.00.39(12) WAGO PFC200 Firmware version 03.01.07(13) WAGO PFC100 Firmware version 03.00.39(12)
Based on inspection of various firmware versions, this vulnerability appears to impact all versions from the current and going back to at least 10 and likely earlier.

QID Detection Logic (Authenticated):
QID checks for the Vulnerable version of using passive scanning

An exploitable regular expression without anchors vulnerability exists in the Web-Based Management (WBM) authentication functionality of WAGO PFC100/200 controllers. A specially crafted authentication request can bypass regular expression filters, resulting in sensitive information disclosure.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution

    Customers are advised to refer to CERT MITIGATIONS section TALOS-2019-0923 for affected packages and patching details.

    Vendor References

    CVEs related to QID 590993

    CVE-2019-5134 |
    Software Advisories
    Advisory ID Software Component Link
    TALOS-2019-0923 URL Logo talosintelligence.com/vulnerability_reports/TALOS-2019-0923
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