CVE-2021-34561CWE-350

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

High · published August 31, 2021

CVSS v3.1
7.5
EPSS
1%
Percentile
58.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00868 · 58.3th percentile
Weakness
CWE-350 · Reliance on Reverse DNS Resolution for a Security-Critical Action
Published
2021-08-31T10:32Z
EPSS history
Timeline
  • 31 AUG 10:32Z
    A vulnerability in WirelessHART-Gateway <= 3.0.8 allows to bypass any IP or firewall based access restrictions through DNS rebinding
    cvelistv5