CVE-2021-34563 Security feature bypass in WHA-GW-F2D2-0-AS- Z2-ETH

Low 3.3 Published Updated

Missing HttpOnly flag on a cookie allows client-side JavaScript to read or modify it, potentially aiding session hijacking in WirelessHART Gateways.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-34563?

CVE-2021-34563 is a low-severity vulnerability in Phoenix Contact WHA-GW-F2D2-0-AS- Z2-ETH, published on 31 Aug 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In PEPPERL+FUCHS WirelessHART-Gateway 3.0.8 and 3.0.9 the HttpOnly attribute is not set on a cookie. This allows the cookie's value to be read or set by client-side JavaScript.

Weakness: CWE-1004

Which versions are affected by CVE-2021-34563?

It affects 2 products.

Products include Pepperl-Fuchs Wha-Gw-F2d2-0-as-Z2-Eth.eip Firmware, Pepperl-Fuchs Wha-Gw-F2d2-0-as-Z2-Eth Firmware.

How do I fix CVE-2021-34563?

No fix has been published for CVE-2021-34563 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-34563 being exploited?

There is no known exploitation of CVE-2021-34563 in the wild and no public exploit code.

Sources

Also known as GHSA-mh9v-6mm6-9gm4.

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