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FIX #yogosha6944 Protection against traversal path.

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This commit is contained in:
Laurent Destailleur 2021-08-23 16:03:34 +02:00
parent cd141373fb
commit edb239837c
2 changed files with 4 additions and 3 deletions
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2
htdocs/document.php
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@ -194,7 +194,7 @@ if (!in_array($type, array('text/x-javascript')) && !dolIsAllowedForPreview($ori
$type = 'application/octet-stream';
}
// Security: Delete string ../ into $original_file
// Security: Delete string ../ or ..\ into $original_file
$original_file = str_replace('../', '/', $original_file);
$original_file = str_replace('..\\', '/', $original_file);

5
htdocs/viewimage.php
View File

@ -221,8 +221,9 @@ if (preg_match('/\.noexe$/i', $original_file)) {
accessforbidden('Error: Using the image wrapper to output a file ending with .noexe is not allowed.', 0, 0, 1);
}
// Security: Delete string ../ into $original_file
$original_file = str_replace("../", "/", $original_file);
// Security: Delete string ../ or ..\ into $original_file
$original_file = str_replace('../', '/', $original_file);
$original_file = str_replace('..\\', '/', $original_file);
// Find the subdirectory name as the reference
$refname = basename(dirname($original_file)."/");