In your OP you wrote
I'm running a program that's sgid, and it has a command-line interpreter from which I can execute unix commands.

Maybe you should set $UID = $EUID in that program?

--shmem 

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re^3: Insecure dependency in open by shmem
in thread Insecure dependency in open by argv

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