The Runtime Toolkit in CODESYS Runtime System 2.3.x and 2.4.x does not require authentication, which allows remote attackers to execute commands via the command-line interface in the TCP listener service or transfer files via requests to the TCP listener service.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Codesys_runtime_system | 3s-software | 2.3.9.8 (including) | 2.3.9.8 (including) |
| Codesys_runtime_system | 3s-software | 2.3.9.35 (including) | 2.3.9.35 (including) |
| Codesys_runtime_system | 3s-software | 2.3.9.36 (including) | 2.3.9.36 (including) |
| Codesys_runtime_system | 3s-software | 2.3.9.37 (including) | 2.3.9.37 (including) |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: