An unauthenticated, remote attacker can disrupt existing communication channels between CODESYS products by guessing a valid channel ID and injecting packets. This results in the communication channel to be closed.

The Festo controller CECC product family is affected by multiple vulnerabilities in the CODESYS V3 runtime.

An unauthenticated, remote attacker can disrupt existing communication channels between CODESYS products by guessing a valid channel ID and injecting packets. This results in the communication channel to be closed.

A remote, authenticated attacker could utilize the control program of the CODESYS Control runtime system to use the vulnerability in order to read and modify the configuration file(s) of the affected products. An authenticated, remote attacker can gain access to a dereferenced pointer contained in a request. The accesses can subsequently lead to local overwriting of memory in the CmpTraceMgr, whereby the attacker can neither gain the values read internally nor control the values to be written. If invalid memory is accessed, this results in a crash. An authenticated remote attacker can cause a null pointer dereference in the CmpSettings component of the affected CODESYS products which leads to a crash. In CODESYS V3 web server before 3.5.17.10, files or directories are accessible to External Parties. CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow. CODESYS V3 web server before 3.5.15.40, as used in CODESYS Control runtime systems, has a buffer overflow. An issue was discovered in 3S-Smart CODESYS V3 through 3.5.12.30. A user with low privileges can take full control over the runtime. CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow. CODESYS V3 web server, all versions prior to 3.5.14.10, allows an attacker to send specially crafted http or https requests which could cause a stack overflow and create a denial-of-service condition or allow remote code execution. 3S-Smart Software S…

Multiple vulnerabilities have been discovered in CODESYS Control V3 runtime system. For details regarding the single vulnerabilities please refer to the security advisories issued by CODESYS:

- CODESYS Security Advisory 2022-02 - CODESYS Security Advisory 2022-04 - CODESYS Security Advisory 2022-06 - CODESYS Security Advisory 2022-09