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CVE-2021-34561

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

HIGH
8.8
CVSS Score
Published: August 31, 2021 at 10:32 AM UTC
Updated: June 17, 2026 at 03:56 AM UTC
6 products affected across 2 vendorsWha Gw F2D2 0-as Z2-eth.eip FirmwareWha Gw F2D2 0-as Z2-eth FirmwareWha-Gw-F2D2-0-As-Z2-Eth

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Severity
HIGH8.8
Exploit prediction
EPSS 0.9%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://cert.vde.com/en-us/advisories/vde-2021-027

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-350

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