mwe file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier is vulnerable to out-of-bounds read remote code execution. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.
Solution:
Workaround:
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
The product reads data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://cert.vde.com/de-de/advisories/vde-2020-023 | vendor advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-20-826/ | third party advisory |