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CVE-2023-37856 PHOENIX CONTACT: Unauthorized read-access of root filesystem in WP 6xxx Web panels

Medium 4.3 Published 9 Aug 2023 Updated 8 Oct 2024

Remote attackers with low privileges can read the root filesystem via a configuration dialog in PHOENIX CONTACT WP 6xxx web panels.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-37856?

CVE-2023-37856 is a medium-severity path traversal vulnerability in PHOENIX CONTACT WP 6070-WVPS, published on 9 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In PHOENIX CONTACTs WP 6xxx series web panels in versions prior to 4.0.10 a remote attacker with low privileges is able to gain limited read-access to the device-filesystem through a configuration dialog within the embedded Qt browser .

Weakness: CWE-610

Which versions are affected by CVE-2023-37856?

It affects 6 products.

Products include Phoenixcontact Wp 6070-Wvps Firmware, Phoenixcontact Wp 6101-Wxps Firmware, Phoenixcontact Wp 6121-Wxps Firmware, Phoenixcontact Wp 6156-Whps Firmware, Phoenixcontact Wp 6185-Whps Firmware, Phoenixcontact Wp 6215-Whps Firmware.

How do I fix CVE-2023-37856?

No fix has been published for CVE-2023-37856 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2023-37856 being exploited?

There is no known exploitation of CVE-2023-37856 in the wild and no public exploit code.

Sources

Also known as GHSA-fqxx-3fhv-wcpr.

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