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generate unpredictable unique session ids

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Signed-off-by: Michael Kaufmann <d00p@froxlor.org>
This commit is contained in:
Michael Kaufmann
2021-10-02 12:38:17 +02:00
parent e73523531a
commit 7feddf0aec
7 changed files with 56 additions and 8 deletions
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28
install/lib/class.FroxlorInstall.php
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@@ -363,6 +363,30 @@ class FroxlorInstall
return $content;
}
/**
* generate safe unique token
*
* @param int $length
* @return string
*/
private function genUniqueToken(int $length = 16)
{
if(!isset($length) || intval($length) <= 8 ){
$length = 16;
}
if (function_exists('random_bytes')) {
return bin2hex(random_bytes($length));
}
if (function_exists('mcrypt_create_iv')) {
return bin2hex(mcrypt_create_iv($length, MCRYPT_DEV_URANDOM));
}
if (function_exists('openssl_random_pseudo_bytes')) {
return bin2hex(openssl_random_pseudo_bytes($length));
}
// if everything else fails, use unsafe fallback
return md5(uniqid(microtime(), 1));
}
/**
* create corresponding entries in froxlor database
*
@@ -406,8 +430,8 @@ class FroxlorInstall
$content .= $this->_status_message('begin', $this->_lng['install']['adding_admin_user']);
$ins_data = array(
'loginname' => $this->_data['admin_user'],
/* use SHA256 default crypt */
'password' => crypt($this->_data['admin_pass1'], '$5$' . md5(uniqid(microtime(), 1)) . md5(uniqid(microtime(), 1))),
/* use SHA256 default crypt */
'password' => crypt($this->_data['admin_pass1'], '$5$' . $this->genUniqueToken() . $this->genUniqueToken()),
'email' => 'admin@' . $this->_data['servername'],
'deflang' => $this->_languages[$this->_activelng]
);