IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY CWE-22
The build settings of a PLCnext Engineer project (.pcwex) can be manipulated in a way that can result in the execution of remote code. The attacker needs to get access to a PLCnext Engineer project to be able to manipulate files inside. Additionally, the files of the remote code need to be transferred to a location which can be accessed by the PC that runs PLCnext Engineer. When PLCnext Engineer runs a build process of the manipulated project the remote code can be executed.
CVE-2020-12499
Phoenix Contact
PLCnext
8.2
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