Summary

Running meterpreter's edit <file> truncates the target file immediately (contents removed) before the editor is shown. If the editor or session fails, the original file is lost.

Steps to reproduce

1. Get a meterpreter session (e.g., linux/x64).
2. Ensure /tmp/testfile.txt contains data:
   echo "ORIGINAL" > /tmp/testfile.txt
3. In the meterpreter session: edit /tmp/testfile.txt
4. Observe the file is emptied immediately.

Expected

edit should open the existing file for editing without truncating it first (or use a temp file + atomic replace).

Actual

File is truncated as soon as edit is invoked.

Environment

• Metasploit: 6.4.91-dev (installed via apt)
• Kernel: Linux 6.8.0-84-generic
• Payload/session: meterpreter (specify arch if relevant)