CVE-2021-33529 WEIDMUELLER: WLAN devices affected by Hard-coded Credentials vulnerability

High 7.5 Published Updated

Hard-coded cryptographic keys in Weidmüller Industrial WLAN devices allow attackers to decrypt captured network traffic.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-33529?

CVE-2021-33529 is a high-severity vulnerability in Weidmüller IE-WL(T)-BL-AP-CL-XX, published on 25 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Weidmueller Industrial WLAN devices in multiple versions the usage of hard-coded cryptographic keys within the service agent binary allows for the decryption of captured traffic across the network from or to the device.

Weakness: CWE-798

Which versions are affected by CVE-2021-33529?

It affects 8 products.

Products include Weidmueller Ie-Wl-Bl-Ap-Cl-Eu Firmware, Weidmueller Ie-Wl-Bl-Ap-Cl-Us Firmware, Weidmueller Ie-Wl-Vl-Ap-Br-Cl-Eu Firmware, Weidmueller Ie-Wl-Vl-Ap-Br-Cl-Us Firmware, Weidmueller Ie-Wlt-Bl-Ap-Cl-Eu Firmware, Weidmueller Ie-Wlt-Bl-Ap-Cl-Us Firmware and 2 more.

How do I fix CVE-2021-33529?

No fix has been published for CVE-2021-33529 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-33529 being exploited?

There is no known exploitation of CVE-2021-33529 in the wild and no public exploit code.

Sources

Also known as GHSA-6jrh-f26m-pv7v.

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