What is CVE-2021-34561?

CVE-2021-34561 is a high-severity vulnerability in Pepperl-Fuchs Wha-Gw-F2d2-0-As-Z2-Eth, classified under CWE-350. CVSS score: 7.5/10. Published 2021-08-31.

How severe is CVE-2021-34561?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Pepperl-Fuchs Wha-Gw-F2d2-0-As-Z2-Eth

CVE-2021-34561

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.

EPSS: 0.009 (56.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Pepperl-fuchs Wha-gw-f2d2-0-as-z2-eth
Pepperl-fuchs Wha-gw-f2d2-0-as-z2-eth.eip
Pepperl-fuchs Wha-gw-f2d2-0-as-z2-eth.eip_firmware
Pepperl-fuchs Wha-gw-f2d2-0-as-z2-eth_firmware
Phoenix Contact Wha-gw-f2d2-0-as- Z2-eth — versions 3.0.8
Phoenix Contact Wha-gw-f2d2-0-as- Z2-eth.eip — versions 3.0.8

Weakness classification (CWE)

CWE-350

References

info@cert.vde.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-34561?: CVE-2021-34561 is a high-severity vulnerability in Pepperl-Fuchs Wha-Gw-F2d2-0-As-Z2-Eth, classified under CWE-350. CVSS score: 7.5/10. Published 2021-08-31.
How severe is CVE-2021-34561?: High severity. CVSS v3 base score is 7.5 out of 10.