CVE-2021-34582

Phoenix Contact: FL MGUARD XSS through web-based management and REST API

Published Nov 10, 2021 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 a user with high privileges can inject HTML code (XSS) through web-based management or the REST API with a manipulated certificate file.

Remediation

Vendor Solution

PHOENIX CONTACT recomments to upgrade to firmware version 1.5.1 (or any later version).


Vendor Workaround

If an untrusted user may have exploited the vulnerability, it is recommended to revoke access for that user, and to re-upload the certificates on the Basic settings > LDAP and Logs > Remote logging pages through the REST API (i.e., without viewing these pages in the web-based management).

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-21232 In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 a user with high privileges can inject HTML code (XSS) through web-based management or the REST API with a manipulated certificate file.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERTVDE
Published
Updated
Sep 16, 2024, 8:11 PM
Reserved
Jun 10, 2021, 12:00 AM
Status
Modified
Published
Nov 10, 2021, 12:15 PM
Modified
Jun 17, 2026, 3:56 AM