Change EUID of running process

Question

On Linux how can I change EUID of running process from command line (provided I have root access)?

Thanks

score 1 · Accepted Answer · answered Oct 18 '09 at 14:54

1

I don't think you can, I am not aware of any syscall that lets you change the effective user id of any process but the calling process.

answered Oct 18 '09 at 14:54

Kyle Brandt

score 0 · Answer 2 · answered Feb 01 '10 at 18:41

0

Use gdb.

# gdb -p pid

(gdb) p seteuid(userid)

answered Feb 01 '10 at 18:41

sfink

1

This requires that _pid_ is running as root already - calls run via `p` run in the context of the traced process. – MikeyB Feb 01 '10 at 18:56

score 0 · Answer 3 · answered Oct 18 '09 at 15:16

0

There's kchuid, but that requires you to compile your own kernel modules, was last updated in 2002, and looks extremely feary.

Alternatively, you could do probably do some ptrace hacks, but a sample or direction is bit beyond me.

answered Oct 18 '09 at 15:16

Zanchey

3 Answers3