Re: strange post photoalbum Apache/PHP error to view uploaded photos

Richard, could you please explain *why* setting files under the documentRoot to chmod 770 permissions is a security risk? i'm only enabling this for the cache-combinated files for my CMS' sitewide css and js files, and the newsItems data directory, and the photoAlbum uploads directories, stuff like that. i believe i need those files and directories writable by apache+php7 to facilitate the day to day operations done by end-users on the websites it serves up.. On Sat, Aug 14, 2021 at 11:20 PM Richard < inbound-lists-php@listmail.innovate.net> wrote: > a slight correction/clarification below ... > > > > Date: Friday, August 13, 2021 22:49:31 +0200 > > From: Rene Veerman <rene.veerman.netherlands@gmail.com> > > > > but after the upload, when i try to view the files, i get an Apache > > level "Access denied" message in the browser > > ... > > shows debug information that > > lists the chown rene:www-data command on the files to fail, but > > that's understandable because apache runs as www-data:www-data. > > However, the chmod 770 command on the files does succeed, > > ... > > - after running my > > > > https://github.com/nicerapp/nicerapp/blob/main/setPermissions.sh > > script after the upload has fully completed, the > > photoalbum/4.0.0/index.php display script works without the access > > denied bug and correctly displays the sub-folder contents. > > > > You need to show your work ... > > - show the apache error log errors - the browser message isn't > very useful > > - show a (truncated) directory/file listing (from the shell) that > includes the ownership/group settings and permissions > > &etc. > > > Separately, while your script appears to set the "nicerapp" directory > with the owner/group of rene:www-data and 750 permissions, at the > bottom of that script, files under that are given 770 permissions. > That means that the apache instance - which you indicate runs as > "www-data" and is in the "www-data" group - has write permission > to those directories and files. This is a security risk. > Directories and files under the document root should *never* be > writable by the process that is running the apache server. >