Hi,

from VDR's HISTORY file (for v1.3.38): - The new command line option '-g' must be given if the SVDRP command GRAB shall be allowed to write image files to disk. The parameter to this option must be the full path name of an existing directory, without any "..", double '/' or symlinks. By default, or if "-g- is given, grabbing to files is not allowed any more because of potential security risks. - Modified the way the SVDRP command GRAB writes the grabbed image to a file to avoid a security hole (CAN-2005-0071, reported by Javier Fernández-Sanguino Peña): + The file handle is now opened in a way that it won't follow symbolic links (suggested by Darren Salt). + The given file name is now canonicalized, so that it won't contain any ".." or symlinks (suggested by Darren Salt). + Grabbing to files is limited to the directory given in the the command line option '-g'. By default grabbing to files is not allowed any more.

Regards, Andreas

On Wednesday 19 April 2006 15:41, Leo Márquez wrote:

More info. I have noticed this issue using vdradmin and jvdr. perhaps this software make the grab command different.

En/na Leo Márquez ha escrit:

...

I have a problem with I try to grab images. This problem match with vdr version change. I have migrated to 1.3.38 I supose that the user vdr has no permission to store the images but I don't know where is trying to save.

grab test.jpg 550 Grabbing to file not allowed (use "GRAB -" instead)

Any solution? Thanks

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vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr

Hi,

use e.g.

-g /tmp

in your vdr start script :)

and

GRAB /tmp/test.jpg

to solve your problem.

cu

-----Ursprüngliche Nachricht----- Von: vdr-bounces@linuxtv.org [mailto:vdr-bounces@linuxtv.org] Im Auftrag von Michael Nausch Gesendet: Mittwoch, 19. April 2006 16:08 An: vdr@linuxtv.org Betreff: Re: [vdr] Grabbing to file not allowed

HI

Am Mittwoch, 19. April 2006 15:34 schrieb Leo Márquez:

...

grab test.jpg 550 Grabbing to file not allowed (use "GRAB -" instead)

Any solution?

Have yout tried this one? => GRAB /video/test.jpg

cu, BC

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I demand that Leo Márquez may or may not have written...

En/na Rene Jahn ha escrit:

...

use e.g.

...

-g /tmp

...

in your vdr start script :)

...

and

...

GRAB /tmp/test.jpg

...

to solve your problem.

Ok. It's works but vdradmin and jvdr still fails to grab images.... I'm looking for syslog messages....

Which versions? ISTR that vdradmin was updated to handle this change, but I have no idea about jvdr.

[snip]

Hi,

...

Which versions? ISTR that vdradmin was updated to handle this change, but I have no idea about jvdr.

[snip]

I'm trying with vdr 1.3.38 and VDRAdmin-AMv.3.4.4

This combination (should) work. Did you upgrade VDR without restarting VDRAdmin-AM?

Regards, Andreas