"Passing null to parameter #1 ($url) of type string is deprecated" in mydomain.com/%c0

[kangarko]

So recently someone accessed mysite.com/%c0 and it would crash the router:

Code:

0: parse_url(): Passing null to parameter #1 ($url) of type string is deprecated

Location:

/home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/Http/Url.php#460

Trace:

#0 [internal function]: {closure}()
#1 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/Http/Url.php(460): parse_url()
#2 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/Http/Url.php(76): Pecee\Http\Url->parseUrl()
#3 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/Http/Url.php(70): Pecee\Http\Url->parse()
#4 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/Http/Request.php(136): Pecee\Http\Url->__construct()
#5 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/SimpleRouter/Router.php(144): Pecee\Http\Request->__construct()
#6 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/SimpleRouter/Router.php(132): Pecee\SimpleRouter\Router->reset()
#7 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/SimpleRouter/SimpleRouter.php(486): Pecee\SimpleRouter\Router->__construct()
#8 /home/matej/web/XX/public_html/vendor/pecee/simple-router/src/Pecee/SimpleRouter/SimpleRouter.php(275): Pecee\SimpleRouter\SimpleRouter::router()
#9 /home/matej/web/XX/public_html/index.php(209): Pecee\SimpleRouter\SimpleRouter::group()
#10 {main}


IP: XX
User agent: XX
GET:

Array
(
)

POST:

Array
(
)

The line in my index.php is the first one at:

SimpleRouter::group(['middleware' => HandleLogin::class], function() {
    foreach (Page::getPages() as $page)
        SimpleRouter::get($page->getUrl(), function() use ($page) {
            $page->render();
        });
});

[kangarko]

Update: Solved by putting $_SERVER['REQUEST_URI'] = '/' . ltrim(filter_var(urldecode($_SERVER['REQUEST_URI']), FILTER_UNSAFE_RAW, FILTER_FLAG_STRIP_LOW | FILTER_FLAG_STRIP_HIGH), '/'); on the first line in index.php before loading composer

[DeveloperMarius]

Hello kangarko,
can you please explain why this is a security vulnerability?
To me it just seems like a normal error and everything should be fine if you are not displaying error messages to the user (even this would just be an information leakage).
Could you please adjust your issue title?

Thank you,
Marius

[kangarko]

Gotcha. I am not sure how the router works internally I just wanted to point this out. Will adjust.