CVE-2023-41094 Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet
Attackers can bypass TouchLink authentication to add devices outside valid range or pairing duration in Silicon Labs Ember ZNet.
- 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-2023-41094?
CVE-2023-41094 is a critical authentication bypass vulnerability in Silicon Labs Ember ZNet, published on 4 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
TouchLink packets processed after timeout or out of range due to Operation on a Resource after Expiration and Missing Release of Resource after Effective Lifetime may allow a device to be added outside of valid TouchLink range or pairing duration
This issue affects Ember ZNet 7.1.x from 7.1.3 through 7.1.5; 7.2.x from 7.2.0 through 7.2.3; Version 7.3 and later are unaffected
Which versions are affected by CVE-2023-41094?
It affects 1 product.
Products include Silabs Emberznet.
How do I fix CVE-2023-41094?
No fix has been published for CVE-2023-41094 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-41094 being exploited?
There is no known exploitation of CVE-2023-41094 in the wild and no public exploit code.
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Sources
Also known as GHSA-jf7p-xvx5-8827.