CVE-2023-5909 Improper Validation of Certificate with Host Mismatch in PTC KEPServerEx
Improper certificate validation in PTC KEPServerEX allows unauthenticated users to connect, bypassing security controls in industrial environments.
- 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-2023-5909?
CVE-2023-5909 is a high-severity authentication bypass vulnerability in GE Gigital Industrial Gateway Server, published on 30 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.
Which versions are affected by CVE-2023-5909?
It affects 8 products.
Products include Ge Industrial Gateway Server, Ptc Keepserverex, Ptc Opc-Aggregator, Ptc Thingworx Industrial Connectivity, Ptc Thingworx Kepware Edge, Ptc Thingworx Kepware Server and 2 more.
How do I fix CVE-2023-5909?
No fix has been published for CVE-2023-5909 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-2023-5909 being exploited?
There is no known exploitation of CVE-2023-5909 in the wild and no public exploit code.
Other vulnerabilities in GE Gigital Industrial Gateway Server
- CVE-2022-2825 Memory corruption in KEPServerEX
- CVE-2020-27265 Memory corruption in PTC Kepware KEPServerEX; ThingWorx Industrial Connectivity; OPC-Aggregator; Rockwell Automation KEPServer Enterprise; GE Digital Industrial Gateway Server; Software Toolbox TOP Server
- CVE-2023-5908 Heap Based Buffer Overflow in PTC KEPServerEx
- CVE-2022-2848 Memory corruption in KEPServerEX
- CVE-2020-27263 Memory corruption in GE Digital Industrial Gateway Server
Sources
Also known as GHSA-rw69-wr48-w7px.