A leftover debug code vulnerability exists in the Telnet Diagnostic Interface functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted series of network requests can lead to unauthorized access. An attacker can send a sequence of requests to trigger this vulnerability.

In AutomationDirect C-MORE EA9 HMI, credentials used by the platform are stored as plain text on the device.

In AutomationDirect C-MORE EA9 HMI there is a program that copies a buffer of a size controlled by the user into a limited sized buffer on the stack which may lead to a stack overflow. The result of this stack-based buffer overflow can lead to denial-of-service conditions.

There is a function in AutomationDirect C-MORE EA9 HMI that allows an attacker to send a relative path in the URL without proper sanitizing of the content.

Any attempt (good or bad) to log into AutomationDirect Stride Field I/O with a web browser may result in the device responding with its password in the communication packets.

AutomationDirect DirectLOGIC is vulnerable to a a specially crafted packet can be sent continuously to the PLC to prevent access from DirectSoft and other devices, causing a denial-of-service condition. This issue affects: AutomationDirect DirectLOGIC D0-06 series CPUs D0-06DD1 versions prior to 2.72; D0-06DD2 versions prior to 2.72; D0-06DR versions prior to 2.72; D0-06DA versions prior to 2.72; D0-06AR versions prior to 2.72; D0-06AA versions prior to 2.72; D0-06DD1-D versions prior to 2.72; D0-06DD2-D versions prior to 2.72; D0-06DR-D versions prior to 2.72;

AutomationDirect DirectLOGIC is vulnerable to a specifically crafted serial message to the CPU serial port that will cause the PLC to respond with the PLC password in cleartext. This could allow an attacker to access and make unauthorized changes. This issue affects: AutomationDirect DirectLOGIC D0-06 series CPUs D0-06DD1 versions prior to 2.72; D0-06DD2 versions prior to 2.72; D0-06DR versions prior to 2.72; D0-06DA versions prior to 2.72; D0-06AR versions prior to 2.72; D0-06AA versions prior to 2.72; D0-06DD1-D versions prior to 2.72; D0-06DD2-D versions prior to 2.72; D0-06DR-D versions prior to 2.72;

AutomationDirect DirectLOGIC has a DLL vulnerability in the install directory that may allow an attacker to execute code during the installation process. This issue affects: AutomationDirect C-more EA9 EA9-T6CL versions prior to 6.73; EA9-T6CL-R versions prior to 6.73; EA9-T7CL versions prior to 6.73; EA9-T7CL-R versions prior to 6.73; EA9-T8CL versions prior to 6.73; EA9-T10CL versions prior to 6.73; EA9-T10WCL versions prior to 6.73; EA9-T12CL versions prior to 6.73; EA9-T15CL versions prior to 6.73; EA9-RHMI versions prior to 6.73; EA9-PGMSW versions prior to 6.73;

AutomationDirect C-more EA9 HTTP webserver uses an insecure mechanism to transport credentials from client to web server, which may allow an attacker to obtain the login credentials and login as a valid user. This issue affects: AutomationDirect C-more EA9 EA9-T6CL versions prior to 6.73; EA9-T6CL-R versions prior to 6.73; EA9-T7CL versions prior to 6.73; EA9-T7CL-R versions prior to 6.73; EA9-T8CL versions prior to 6.73; EA9-T10CL versions prior to 6.73; EA9-T10WCL versions prior to 6.73; EA9-T12CL versions prior to 6.73; EA9-T15CL versions prior to 6.73; EA9-RHMI versions prior to 6.73; EA9-PGMSW versions prior to 6.73;

After Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, the unlocked state does not timeout. If the programming software is interrupted, the PLC remains unlocked. All subsequent programming connections are allowed without authorization. The PLC is only relocked by a power cycle, or when the programming software disconnects correctly.