(Pwn2Own) Phoenix Contact CHARX SEC-3100 CANopenDevice Null Pointer Dereference Denial-of-Service Vulnerability
June 21st, 2024
Vulnerability Details
This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Phoenix Contact CHARX SEC-3100 devices. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of CANopenDevice objects. The issue results from dereferencing a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Additional Details
Phoenix Contact has issued an update to correct this vulnerability. More details can be found at:
https://cert.vde.com/en/advisories/VDE-2024-011/
Disclosure Timeline
- 2024-05-02 - Vulnerability reported to vendor
- 2024-06-21 - Coordinated public release of advisory
- 2024-08-15 - Advisory Updated
Credit
RET2 Systems
