Improper Certificate Validation in ASE2000 V2 Communication Test Set Enables MITM

ASE/Kalkitech ASE2000 V2 Communication Test Set 2.35 through 2.37 on Windows contains an improper certificate validation vulnerability in the IEC 60870-5-104 TLS client (Task Mode). This allows a network-positioned attacker to bypass certificate validation via a certificate with multiple simultaneous faults, enabling a Man-in-the-Middle attack on protected communications.

A security vulnerability originally reported in the SYNC2101 product, and applicable to specific sub-families of SYNC devices, allows an attacker to download the configuration file used in the device and apply a modified configuration file back to the device. The attack requires network access to the SYNC device and knowledge of its IP address. The attack exploits the unsecured communication channel used between the administration tool Easyconnect and the SYNC device (in the affected family of SYNC products).

Kalki Kalkitech SYNC3000 Substation DCU GPC v2.22.6, 2.23.0, 2.24.0, 3.0.0, 3.1.0, 3.1.16, 3.2.3, 3.2.6, 3.5.0, 3.6.0, and 3.6.1, when WebHMI is not installed, allows an attacker to inject client-side commands or scripts to be executed on the device with privileged access, aka CYB/2019/19561. The attack requires network connectivity to the device and exploits the webserver interface, typically through a browser.