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Full Discussion: Changing effective user
Special Forums Cybersecurity Changing effective user Post 7060 by Perderabo on Tuesday 18th of September 2001 09:56:28 AM
Old 09-18-2001
It suid bit controls the switch of the effective uid. The sticky bit has nothing to do with it. And modern kernels will ignore the suid and sgid bits when executing scripts.

There is a program called "sudo" that can let a user run a script with another uid's authority. That is what I would recommend. sudo is a public domain program available from various archive sites.
 

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elksemu(1)						      General Commands Manual							elksemu(1)

NAME
elksemu - Embedded Linux Kernel Subset emulator SYNOPSIS
/lib/elksemu program [arguments] DESCRIPTION
Elksemu is a program that allows 8086 ELKS programs to be run under Linux-i386. These programs can be compiled using the bcc(1) C compiler. It is not usual to invoke /lib/elksemu directly, either the simple patch or kernel module distributed with it will cause the kernel to run /lib/elksemu with the correct arguments whenever the user tries to execute an ELKS executable directly. OPTIONS
There are no flag options to elksemu, the first argument is the name of the program to run the rest are arguments that are passed to the Elks program. The elksemu program is normally installed suid-root and in this event it is able to run execute only (chmod 111) elks executables and act correctly on the suid permission bits on those executable. This may be considered a security hazard so elksemu does not have to be installed suid-root. SEE ALSO
bcc(1), as86(1), ld86(1) BUGS
Elksemu is incomplete. The program may still have security bugs! Jan, 1997 elksemu(1)
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