Attachment 159153 Details for Bug 35291 – Bug 35291: Validate filepaths in linking files

[patch] Bug 35291: Validate filepaths in linking files

Bug-35291-Validate-filepaths-in-linking-files.patch (text/plain), 1.48 KB, created by Nick Clemens (kidclamp) on 2023-11-21 11:41:28 UTC

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Creator: Nick Clemens (kidclamp)

Created: 2023-11-21 11:41:28 UTC

Size: 1.48 KB

patch

obsolete

>From 71b033e4c0b54d95f13b389286cb115943cd49c8 Mon Sep 17 00:00:00 2001
>From: David Cook <dcook@prosentient.com.au>
>Date: Thu, 9 Nov 2023 00:49:54 +0000
>Subject: [PATCH] Bug 35291: Validate filepaths in linking files
>
>Validate that the files in linking files are contained within the ZIP.
>
>Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
>---
> tools/upload-cover-image.pl | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
>diff --git a/tools/upload-cover-image.pl b/tools/upload-cover-image.pl
>index bf43928b582..7ddd13adbcc 100755
>--- a/tools/upload-cover-image.pl
>+++ b/tools/upload-cover-image.pl
>@@ -38,6 +38,7 @@ resized, maintaining aspect ratio.
> =cut
> 
> use Modern::Perl;
>+use Cwd;
> 
> use File::Temp;
> use CGI qw ( -utf8 );
>@@ -187,7 +188,11 @@ if ($fileID) {
>                             $filename =~ s/[\"\r\n]//g;
>                             $filename =~ s/^\s+//;
>                             $filename =~ s/\s+$//;
>-                            my $srcimage = GD::Image->new("$dir/$filename");
>+                            my $full_filename = Cwd::abs_path("$dir/$filename"); #Resolve any relative filepath references
>+                            my $srcimage;
>+                            if ( $full_filename =~ /^\Q$dir\E/ ){
>+                                $srcimage = GD::Image->new($full_filename);
>+                            }
>                             my $biblio;
>                             my $item;
>                             if ( defined $srcimage ) {
>-- 
>2.30.2

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