Re: setreuid(2)?

2022-11-08 Thread Robert Elz
Date:Mon, 7 Nov 2022 23:45:55 -0500 (EST) From:Mouse Message-ID: <202211080445.xaa10...@stone.rodents-montreal.org> | What am I missing? Nothing. Using the saved id's is only an alternative (and really, a fairly miserable one - a security nightmare, though recent

Re: setreuid(2)?

2022-11-08 Thread Mouse
>> What am I missing? > Nothing. > Using the saved id's is only an alternative ([...]) if the sole aim > of using setreuid() ([...]) is to allow a setuid process perform some > operations as the real uid, and then revert to the effective uid once > those are done. OK, so the real problem is that

Re: setreuid(2)?

2022-11-08 Thread Mouse
I wrote > OK, so the real problem is that the [setreuid] manpage overstates the > case for its obsolescence. I'll file a PR. Apparently I won't. My mail bounced "too many hops"; there seems to be a loop somewhere in there. If someone can tell me a useful place to send it, I can pass the bounce

Re: setreuid(2)?

2022-11-08 Thread RVP
On Mon, 7 Nov 2022, Mouse wrote: used in new code". But I must be missing something, because I can't see any way to exploit the functionality described there, including the saved IDs, to get the effect I want...short of creating an executable I don't use seteuid(), but, it looks like you can