CVE-2024-43099 AutomationDirect DirectLogic H2-DM1E Authentication Bypass by Capture-replay
An attacker can hijack authenticated sessions by capturing session keys and spoofing network addresses to inject traffic into PLC communications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-43099?
CVE-2024-43099 is a high-severity authentication bypass vulnerability in AutomationDirect DirectLogic H2-DM1E, published on 13 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The session hijacking attack targets the application layer's control mechanism, which manages authenticated sessions between a host PC and a PLC. During such sessions, a session key is utilized to maintain security. However, if an attacker captures this session key, they can inject traffic into an ongoing authenticated session. To successfully achieve this, the attacker also needs to spoof both the IP address and MAC address of the originating host which is typical of a session-based attack.
Weakness: CWE-294
Which versions are affected by CVE-2024-43099?
How do I fix CVE-2024-43099?
No fix has been published for CVE-2024-43099 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-2024-43099 being exploited?
There is no known exploitation of CVE-2024-43099 in the wild and no public exploit code.
Sources
Also known as GHSA-xqww-5c9g-v62q.