CODESYS: web server vulnerable to DoS

An unauthenticated remote attacker can causes the CODESYS web server to access invalid memory which results in a DoS.

CODESYS Toolkit Exposes Sensitive Files via Default Permissions

CODESYS Runtime Toolkit-based products may expose sensitive files to local low-privileged operating system users due to default file permissions.

CODESYS Control PKI Exposure Enables Remote Certificate Access

A low-privileged attacker can remotely access the PKI folder of the CODESYS Control runtime system and thus read and write certificates and its keys. This allows sensitive data to be extracted or to accept certificates as trusted. Although all services remain available, only unencrypted communication is possible if the certificates are deleted.

CODESYS Control Audit Log Format String DoS

An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (DoS) condition.

CODESYS Control Boot Application Replacement Enables Code Execution

A low-privileged remote attacker may be able to replace the boot application of the CODESYS Control runtime system, enabling unauthorized code execution.

CODESYS Control - Invalid type usage in visualization

An unauthenticated remote attacker may cause the visualisation server of the CODESYS Control runtime system to access a resource with a pointer of wrong type, potentially leading to a denial-of-service (DoS) condition.

CODESYS Development System - Deserialization of Untrusted Data

An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.

CODESYS V2 runtime system SP before 2.4.7.55 has Improper Neutralization of Special Elements used in an OS Command.

CODESYS V2 runtime system SP before 2.4.7.55 has a Stack-based Buffer Overflow.

CODESYS V2 Web-Server before 1.1.9.20 has a Stack-based Buffer Overflow.

CODESYS V2 Web-Server before 1.1.9.20 has Improper Access Control.

CODESYS V2 Web-Server before 1.1.9.20 has a a Buffer Copy without Checking the Size of the Input.

CODESYS V2 Web-Server before 1.1.9.20 has an Improperly Implemented Security Check.

CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Write.

CODESYS V2 Web-Server before 1.1.9.20 has an Out-of-bounds Read.

CODESYS V2 runtime system before 2.4.7.55 has Improper Input Validation.

CODESYS V2 web server: crafted requests could trigger a heap-based buffer overflow (DoS)

Crafted web server requests may cause a heap-based buffer overflow and could therefore trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.

CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)

Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service condition due to a crash in the CODESYS V2 web server prior to V1.1.9.22.

CODESYS V2 web server: crafted requests could trigger a pointer dereference with an invalid address (DoS)

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.

CODESYS V2 web server: crafted requests could trigger a null pointer dereference (DoS)

In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the CODESYS web server and may result in a denial-of-service condition.