On Wed, Feb 11, 2004 at 11:09:00AM +0000, Bender wrote:
> Below you can find a exploit for latest bug in XFree86 sofware.
> Tested on some versions of RedHat Linux (mainly 7.0).
> regards
> Bender
>
> execle("/usr/bin/X11/X","X",":0","-fp","/tmp",0,envp);
It's worth pointing out that this is still a problem for installations which
do not have a SUID root. (For example, the X server is started by a display
manager which is already root).
If you can send commands to the X server you can:
% xset +fp /path/to/bad/fontdir
> Below you can find a exploit for latest bug in XFree86 sofware.
> Tested on some versions of RedHat Linux (mainly 7.0).
> regards
> Bender
>
> execle("/usr/bin/X11/X","X",":0","-fp","/tmp",0,envp);
It's worth pointing out that this is still a problem for installations which
do not have a SUID root. (For example, the X server is started by a display
manager which is already root).
If you can send commands to the X server you can:
% xset +fp /path/to/bad/fontdir
Which has the same effect (comfirmed).
--
Adam Langley agl (at) imperialviolet (dot) org [email concealed]
http://www.imperialviolet.org (+44) (0)7906 332512
PGP: 9113 256A CC0F 71A6 4C84 5087 CDA5 52DF 2CB6 3D60
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