[CVE-2016-2563] confused with PoC about pub HOT 4 CLOSED

Hi @VictorYYW,

that's pscp on windows debugged with windbg. the output shown is from windbg.

cheers,
tin

from pub.

Oh, I see. I am trying to reproduce it in Debian docker container. What I have is that, pscp exit with code 1 in gdb and an error message "Fatal: Server unexpectedly closed network connection", which is expected from my perspective because the server closed the connection after peer did not ask for a shell.

Is it the expected behavior? If not, do you have any suggestion? Thank you for your time! @tintinweb

from pub.

@VictorYYW Verify that you're running a vulnerable version of pscp. It unexpectedly closes the connection because it crashes. attach gdb to pscp before trriggering the poc to catch the segmentation fault and continue analyzing it (there's great tutorials about that online :)

gdb --args pscp arg1 arg2 arg3

cheers

from pub.

@tintinweb I just checked the source file and found the vulnerable code remained not fixed.

I have a basic knowledge of gdb. Here's what I have found.


It would be great if you give me any hint!

from pub.