Re: Repost: Security bug in SGI VideoFramer

[martinh () mailhost emap co uk (martinh () mailhost emap co uk)]

On Tue, 14 May 1996, Hui-Hui Hu wrote:

> Stardot Networks / Security vulnerability [SDN-2-sgi-videoframer]
>
> PROBLEM. sb_encode is installed setuid in /usr/video/vfr/bin and does not
> check for permissions/ownership. sb_encode takes an IRIS RGB-format image
> file and spits out a VideoFramer format file (.vfr).
>
> REPEAT BY: /usr/video/vfr/bin/sb_encode -o [file-to-overwrite] [iris-image]
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

> TEMPORARY FIX.
>
> # chmod -s /usr/video/vfr/*

Since the sb_encode program is in a subdirectory of /usr/video/vfr/
shouldn't the fix be:

# chmod -R -s /usr/video/vfr/*


M.


##################################################################
# Martin Hargreaves (martin () datamodl demon co uk)  Computational #
# Director, Datamodel Ltd                                Chemist #
# Contract Unix system admin/Unix security              Sysadmin #
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