CVE-2021-34561

A vulnerability in WirelessHART-Gateway <= 3.0.8 allows to bypass any IP or firewall based access restrictions through DNS rebinding

Published Aug 31, 2021 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
In PEPPERL+FUCHS WirelessHART-Gateway <= 3.0.8 serious issue exists, if the application is not externally accessible or uses IP-based access restrictions. Attackers can use DNS Rebinding to bypass any IP or firewall based access restrictions that may be in place, by proxying through their target's browser.

Remediation

Vendor Solution

No update available.


Vendor Workaround

An external protective measure is required. * Minimize network exposure for affected products and ensure that they are not accessible via the Internet. * Isolate affected products from the corporate network. * If remote access is required, use secure methods such as virtual private networks (VPNs).

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-21211 In PEPPERL+FUCHS WirelessHART-Gateway <= 3.0.8 serious issue exists, if the application is not externally accessible or uses IP-based access restrictions. Attackers can use DNS Rebinding to bypass any IP or firewall based access restrictions that may be in place, by proxying through their target's browser.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERTVDE
Published
Updated
Sep 17, 2024, 1:56 AM
Reserved
Jun 10, 2021, 12:00 AM
Status
Modified
Published
Aug 31, 2021, 11:15 AM
Modified
Jun 17, 2026, 3:56 AM