CVE-2019-10120 Auth bypass in n/a

High 8.8 Published Updated

Attackers can maintain unauthorized access by reusing session IDs after logout on HomeMatic CCU devices, leading to account takeover.

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-2019-10120?

CVE-2019-10120 is a high-severity authentication bypass vulnerability in n/a, published on 10 Jul 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

On eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.16, automatic login configuration (aka setAutoLogin) can be achieved by continuing to use a session ID after a logout, aka HMCCU-154.

Weakness: CWE-384

Which versions are affected by CVE-2019-10120?

It affects 2 products.

Products include Eq-3 Ccu2 Firmware, Eq-3 Ccu3 Firmware.

How do I fix CVE-2019-10120?

No fix has been published for CVE-2019-10120 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-2019-10120 being exploited?

There is no known exploitation of CVE-2019-10120 in the wild and no public exploit code.

Sources

Also known as GHSA-qp96-5rrf-qmcp.

Is CVE-2019-10120 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free