DESCRIPTION: There is a vulnerability in phpimglist which allows a user
to traverse through directories outside the web root. It only shows
directories and image files although there might be a way around this.

Exploit: http://www.site.com/images/?cwd=../../../../
          -or-
          http://www.site.com/images/?cwd=/

UNOFFICIAL FIX: Around line 76, there is a block like:

if (!$cwd) { $cwd = $SET...... else {
      $cwd = .....
}

Replace this block with the following block:

if (!$cwd) { $cwd = $SETTINGS["rootdir"]; } else {
         $cwd = ereg_replace("\.+","",$cwd);
         $cwd = ereg_replace("^/+","",$cwd);
}

This appears to fix the problem.

VENDOR/AUTHOR STATUS: I contacted the author and got a VERY QUICK
response. The email transcript is below:

----
Hm.. Thanks  :) I\'ll get that fixed ASAP.. i thought I had put checking
for ../ in , but never tested it :)
if you have any ideas for the script,or find anything else, lemme know..
;]
replying to:
You can traverse directories using the $cwd variable in phpimglist.
Example is:
http://phpimglist.site/?cwd=/
or
http://phpimglist.site/?cwd=../../../../../
This allows you to navigate the filesystem and see any image on the
filesystem, perhaps more..
I added something that I believe fixed it..
if (!$cwd) { $cwd = $SETTINGS[\"rootdir\"]; } else {
         $cwd = ereg_replace(\"\\.+\",\"\",$cwd);
         $cwd = ereg_replace(\"^/+\",\"\",$cwd);
}
You had something similar but it was not working for some reason.
----
Cheers,
Jason DiCioccio
geniusjods.org
Open Domain Service
http://www.ods.org/

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