CVE-2019-10121 Missing authorization in n/a
Attackers can bypass authorization checks to automatically log in as admin on HomeMatic CCU devices by obtaining a session ID.
- 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-2019-10121?
CVE-2019-10121 is a critical missing authorization vulnerability in n/a, published on 10 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.15 use session IDs for authentication but lack authorization checks. An attacker can obtain a session ID via the user authentication dialogue, aka HMCCU-153. This leads to automatic login as admin.
Weakness: CWE-306
Which versions are affected by CVE-2019-10121?
It affects 2 products.
Products include Eq-3 Ccu2 Firmware, Eq-3 Ccu3 Firmware.
How do I fix CVE-2019-10121?
No fix has been published for CVE-2019-10121 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2019-10121 being exploited?
There is no known exploitation of CVE-2019-10121 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gj8m-v66h-h3ww.