CVEvulnerability

CVE-2021-34561

8.8 HIGH Published 2021-08-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-08-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-350

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 configurations

• pepperl-fuchs wha-gw-f2d2-0-as-z2-eth firmware (<= 3.0.8) • pepperl-fuchs wha-gw-f2d2-0-as-z2-eth.eip firmware (<= 3.0.8)

Related

Weakness · CWE (1)

  • CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action weakness

References