CVE-2023-4760

Summary

CVE-2023-4760 is a Remote Code Execution vulnerability affecting Eclipse RAP versions 3.0.0 through 3.25.0 on Windows systems. This issue stems from an insecure file name extraction method in the FileUploadProcessor's stripFileName(String name) function. When a forward slash (/) is encountered in the file name, everything before it is removed, but backslashes (\\) further back in the path are kept. This quirk can be exploited by uploading a specially crafted file, such as /..\\..\\webapps\\shell.war, that is saved as ..\\..\\webapps\\shell.war upon upload. Subsequently, this file can be executed on a Tomcat server, posing a significant security risk.

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