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Fixing a Path Traversal Vulnerability #1

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Fixing a Path Traversal Vulnerability #1

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5 changes: 5 additions & 0 deletions server.js
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,11 @@ http.createServer(function (request, response) {

//The requested URL like http://localhost:8000/file.html
var uri = url.parse(request.url).pathname;
if (path.normalize(decodeURI(uri)) !== decodeURI(uri)) {
response.statusCode = 403;
response.end();
return;
}
//get the file.html from above and then find it from the current folder
var filename = path.join(process.cwd(), uri);

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