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BUG Fix malformed urls redirecting to external sites

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This commit is contained in:
Damian Mooyman 2015-05-25 12:38:34 +12:00
parent cb6717c3f8
commit c14e7f6b76
8 changed files with 53 additions and 23 deletions
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1
control/Controller.php
View File

@ -497,6 +497,7 @@ class Controller extends RequestHandler implements TemplateGlobalProvider {
// absolute redirection URLs not located on this site may cause phishing
if(Director::is_site_url($url)) {
$url = Director::absoluteURL($url, true);
return $this->redirect($url);
} else {
return false;

1
forms/Form.php
View File

@ -349,6 +349,7 @@ class Form extends RequestHandler {
if(Director::is_site_url($pageURL)) {
// Remove existing pragmas
$pageURL = preg_replace('/(#.*)/', '', $pageURL);
$pageURL = Director::absoluteURL($pageURL, true);
return $this->controller->redirect($pageURL . '#' . $this->FormName());
}
}

6
security/ChangePasswordForm.php
View File

@ -102,12 +102,12 @@ class ChangePasswordForm extends Form {
// TODO Add confirmation message to login redirect
Session::clear('AutoLoginHash');
if (isset($_REQUEST['BackURL'])
&& $_REQUEST['BackURL']
if (!empty($_REQUEST['BackURL'])
// absolute redirection URLs may cause spoofing
&& Director::is_site_url($_REQUEST['BackURL'])
) {
$this->controller->redirect($_REQUEST['BackURL']);
$url = Director::absoluteURL($_REQUEST['BackURL']);
$this->controller->redirect($url);
}
else {
// Redirect to default location - the login form saying "You are logged in as..."

21
security/MemberLoginForm.php
View File

@ -165,7 +165,7 @@ JS
* )
*
* @param array $data
* @return void
* @return SS_HTTPResponse
*/
protected function logInUserAndRedirect($data) {
Session::clear('SessionForms.MemberLoginForm.Email');
@ -181,18 +181,21 @@ JS
}
// Absolute redirection URLs may cause spoofing
if(isset($_REQUEST['BackURL']) && $_REQUEST['BackURL'] && Director::is_site_url($_REQUEST['BackURL']) ) {
return $this->controller->redirect($_REQUEST['BackURL']);
}
if(!empty($_REQUEST['BackURL'])) {
$url = $_REQUEST['BackURL'];
if(Director::is_site_url($url) ) {
$url = Director::absoluteURL($url);
} else {
// Spoofing attack, redirect to homepage instead of spoofing url
if(isset($_REQUEST['BackURL']) && $_REQUEST['BackURL'] && !Director::is_site_url($_REQUEST['BackURL'])) {
return $this->controller->redirect(Director::absoluteBaseURL());
$url = Director::absoluteBaseURL();
}
return $this->controller->redirect($url);
}
// If a default login dest has been set, redirect to that.
if (Security::default_login_dest()) {
return $this->controller->redirect(Director::absoluteBaseURL() . Security::default_login_dest());
if ($url = Security::default_login_dest()) {
$url = Controller::join_links(Director::absoluteBaseURL(), $url);
return $this->controller->redirect($url);
}
// Redirect the user to the page where he came from

9
tests/control/ControllerTest.php
View File

@ -201,14 +201,15 @@ class ControllerTest extends FunctionalTest {
public function testRedirectBackByReferer() {
$internalRelativeUrl = '/some-url';
$internalAbsoluteUrl = Controller::join_links(Director::absoluteBaseURL(), '/some-url');
$response = $this->get('ControllerTest_Controller/redirectbacktest', null,
array('Referer' => $internalRelativeUrl));
$this->assertEquals(302, $response->getStatusCode());
$this->assertEquals($internalRelativeUrl, $response->getHeader('Location'),
$this->assertEquals($internalAbsoluteUrl, $response->getHeader('Location'),
"Redirects on internal relative URLs"
);
$internalAbsoluteUrl = Director::absoluteBaseURL() . '/some-url';
$response = $this->get('ControllerTest_Controller/redirectbacktest', null,
array('Referer' => $internalAbsoluteUrl));
$this->assertEquals(302, $response->getStatusCode());
@ -226,9 +227,11 @@ class ControllerTest extends FunctionalTest {
public function testRedirectBackByBackUrl() {
$internalRelativeUrl = '/some-url';
$internalAbsoluteUrl = Controller::join_links(Director::absoluteBaseURL(), '/some-url');
$response = $this->get('ControllerTest_Controller/redirectbacktest?BackURL=' . urlencode($internalRelativeUrl));
$this->assertEquals(302, $response->getStatusCode());
$this->assertEquals($internalRelativeUrl, $response->getHeader('Location'),
$this->assertEquals($internalAbsoluteUrl, $response->getHeader('Location'),
"Redirects on internal relative URLs"
);

4
tests/core/startup/ParameterConfirmationTokenTest.php
View File

@ -32,8 +32,11 @@ class ParameterConfirmationTokenTest extends SapphireTest {
return array($answer, $slash);
}
protected $oldHost = null;
public function setUp() {
parent::setUp();
$this->oldHost = $_SERVER['HTTP_HOST'];
$_GET['parameterconfirmationtokentest_notoken'] = 'value';
$_GET['parameterconfirmationtokentest_empty'] = '';
$_GET['parameterconfirmationtokentest_withtoken'] = '1';
@ -48,6 +51,7 @@ class ParameterConfirmationTokenTest extends SapphireTest {
foreach($_GET as $param) {
if(stripos($param, 'parameterconfirmationtokentest_') === 0) unset($_GET[$param]);
}
$_SERVER['HTTP_HOST'] = $this->oldHost;
parent::tearDown();
}

25
tests/security/SecurityTest.php
View File

@ -177,13 +177,19 @@ class SecurityTest extends FunctionalTest {
/* UNEXPIRED PASSWORD GO THROUGH WITHOUT A HITCH */
$goodResponse = $this->doTestLoginForm('sam@silverstripe.com' , '1nitialPassword');
$this->assertEquals(302, $goodResponse->getStatusCode());
$this->assertEquals(Director::baseURL() . 'test/link', $goodResponse->getHeader('Location'));
$this->assertEquals(
Controller::join_links(Director::absoluteBaseURL(), 'test/link'),
$goodResponse->getHeader('Location')
);
$this->assertEquals($this->idFromFixture('Member', 'test'), $this->session()->inst_get('loggedInAs'));
/* EXPIRED PASSWORDS ARE SENT TO THE CHANGE PASSWORD FORM */
$expiredResponse = $this->doTestLoginForm('expired@silverstripe.com' , '1nitialPassword');
$this->assertEquals(302, $expiredResponse->getStatusCode());
$this->assertEquals(Director::baseURL() . 'Security/changepassword', $expiredResponse->getHeader('Location'));
$this->assertEquals(
Controller::join_links(Director::baseURL(), 'Security/changepassword'),
$expiredResponse->getHeader('Location')
);
$this->assertEquals($this->idFromFixture('Member', 'expiredpassword'),
$this->session()->inst_get('loggedInAs'));
@ -191,7 +197,10 @@ class SecurityTest extends FunctionalTest {
$this->mainSession->followRedirection();
$changedResponse = $this->doTestChangepasswordForm('1nitialPassword', 'changedPassword');
$this->assertEquals(302, $changedResponse->getStatusCode());
$this->assertEquals(Director::baseURL() . 'test/link', $changedResponse->getHeader('Location'));
$this->assertEquals(
Controller::join_links(Director::absoluteBaseURL(), 'test/link'),
$changedResponse->getHeader('Location')
);
}
public function testChangePasswordForLoggedInUsers() {
@ -201,13 +210,19 @@ class SecurityTest extends FunctionalTest {
$this->get('Security/changepassword?BackURL=test/back');
$changedResponse = $this->doTestChangepasswordForm('1nitialPassword', 'changedPassword');
$this->assertEquals(302, $changedResponse->getStatusCode());
$this->assertEquals(Director::baseURL() . 'test/back', $changedResponse->getHeader('Location'));
$this->assertEquals(
Controller::join_links(Director::absoluteBaseURL(), 'test/back'),
$changedResponse->getHeader('Location')
);
$this->assertEquals($this->idFromFixture('Member', 'test'), $this->session()->inst_get('loggedInAs'));
// Check if we can login with the new password
$goodResponse = $this->doTestLoginForm('sam@silverstripe.com' , 'changedPassword');
$this->assertEquals(302, $goodResponse->getStatusCode());
$this->assertEquals(Director::baseURL() . 'test/link', $goodResponse->getHeader('Location'));
$this->assertEquals(
Controller::join_links(Director::absoluteBaseURL(), 'test/link'),
$goodResponse->getHeader('Location')
);
$this->assertEquals($this->idFromFixture('Member', 'test'), $this->session()->inst_get('loggedInAs'));
}

7
thirdparty/simpletest/url.php vendored
View File

@ -410,7 +410,7 @@ class SimpleUrl {
*/
function asString() {
$path = $this->_path;
$scheme = $identity = $host = $encoded = $fragment = '';
$scheme = $identity = $host = $port = $encoded = $fragment = '';
if ($this->_username && $this->_password) {
$identity = $this->_username . ':' . $this->_password . '@';
}
@ -419,13 +419,16 @@ class SimpleUrl {
$scheme .= "://";
$host = $this->getHost();
}
if ($this->getPort() && $this->getPort() != 80 ) {
$port = ':'.$this->getPort();
}
if (substr($this->_path, 0, 1) == '/') {
$path = $this->normalisePath($this->_path);
}
$encoded = $this->getEncodedRequest();
$fragment = $this->getFragment() ? '#'. $this->getFragment() : '';
$coords = $this->getX() === false ? '' : '?' . $this->getX() . ',' . $this->getY();
return "$scheme$identity$host$path$encoded$fragment$coords";
return "$scheme$identity$host$port$path$encoded$fragment$coords";
}
/**