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Bug 11661: sanitize file names supplied to edithelp.pl 

This patch corrects an issue whereby edithelp.pl could
be used to create or modify arbitrary files on the server
with the permissions of the Apache user.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
This commit is contained in:
Chris Cormack 2014-02-01 15:06:58 +13:00 committed by Kyle M Hall
parent 0057c98f25
commit 3517a93995
1 changed files with 3 additions and 1 deletions
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4
edithelp.pl
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@ -65,7 +65,9 @@ my ( $template, $loggedinuser, $cookie ) = get_template_and_user(
sub _get_filepath ($;$) {
my $referer = shift;
$referer =~ /koha\/(.*)\.pl/;
my $from = "help/$1.tt";
my $file = $1;
$file =~ s/[^0-9a-zA-Z_\-\/]*//g;
my $from = "help/$file.tt";
my $htdocs = C4::Context->config('intrahtdocs');
my ($theme, $lang) = C4::Templates::themelanguage( $htdocs, $from, "intranet", $input );
$debug and print STDERR "help filepath: $htdocs/$theme/$lang/modules/$from";