* William R. Ward <[EMAIL PROTECTED]> [2001.11.29 18:00:40-0800]: > Question: Is it generally considered secure enough to sudo a bash > script like your sucpaliases? Or should a C equivalent be written > instead?
no. especially not the quick'n'dirty version that alvin posted. i am not criticizing, but there is an art to writing secure shell scripts. i can't give you full details, but two things that you should *never* forget is using absolute paths for binaries only. in addition, set your PATH to the standard explicitly. in alvin's example, he does mv /tmp/aliases /etc/aliases within the script run as root via sudo. it would not be hard to make it take the script /tmp/mv that i have just provided instead of /bin/mv, because all that the script cares about is which mv executable if found first... -- martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:"; net@madduck wind catches lily, scattering petals to the ground. segmentation fault.
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