nieznany hash

[michalski007]

witam
mam tutaj pewnie hash

czy ktos moze wie jaki to jest typ?
i czym to rozkodowac?

z tego co wiem to niejest md5, md5 powinien miec 16 bajtów

oto hash

46135fdd4ad6bd3c

pozdrawiam

[suchy]

Powiedz skąd go masz, to jakaś wskazówka będzie, bo tak to ciężko powiedziec.

[michalski007]

to jest hash pozwalajacy logowac sie do panelu admina na stronie, strona jest w php, strona jest zamieszczona na serwerze z debianem, wersja kernela 2.6.17
cos jeszcze?

[suchy]

md5 powinien miec 16 bajtów

oto hash

46135fdd4ad6bd3c

pozdrawiam

Przecież to co podałeś ma 16 bajtów:P

Z tego co się doczytałem MD5 moze też mieć 16 bajtowe hashe.

[eMCe]

i ja też mam jakieś przeczucie ze to md5...

[31337]

skoro masz jakotaki dostęp do servera, może oblukaj funkcje która geneuje ten hash. To nie jest żaden 'standardowy', autor skryptu musiał sam napisać algorytm.

[michalski007]

nie wiem jaki to algorytm ale dolanczam tresc pliku user_password.php moze to wam cos da:

<?php
/* $Id: user_password.php,v 2.3 2003/11/26 22:52:24 rabus Exp $ */
// vim: expandtab sw=4 ts=4 sts=4:


/**
 * Gets some core libraries
 */
require_once('./libraries/grab_globals.lib.php');
require_once('./libraries/common.lib.php');

/**
 * Displays an error message and exits if the user isn't allowed to use this
 * script
 */
if (!$cfg['ShowChgPassword']) {
    $cfg['ShowChgPassword'] = @PMA_mysql_query('USE mysql', $userlink);
}
if ($cfg['Server']['auth_type'] == 'config' || !$cfg['ShowChgPassword']) {
    require_once('./header.inc.php');
    echo '<p><b>' . $strError . '</b></p>' . "\n"
       . '<p>&nbsp;&nbsp;&nbsp;&nbsp;' .  $strNoRights . '</p>' . "\n";
    require_once('./footer.inc.php');
} // end if


/**
 * If the "change password" form has been submitted, checks for valid values
 * and submit the query or logout
 */
if (isset($nopass)) {
    $error_msg = '';

    if ($nopass == 0 && isset($pma_pw) && isset($pma_pw2)) {
        if ($pma_pw != $pma_pw2) {
            $error_msg = $strPasswordNotSame;
        }
        if (empty($pma_pw) || empty($pma_pw2)) {
            $error_msg = $strPasswordEmpty;
        }
    } // end if

    // here $nopass could be == 1
    if (empty($error_msg)) {

        // Defines the url to return to in case of error in the sql statement
        $common_url_query = PMA_generate_common_url();

        $err_url          = 'user_password.php?' . $common_url_query;

        $sql_query        = 'SET password = ' . (($pma_pw == '') ? '\'\'' : 'PASSWORD(\'' . preg_replace('@.@s', '*', $pma_pw) . '\')');
        $local_query      = 'SET password = ' . (($pma_pw == '') ? '\'\'' : 'PASSWORD(\'' . PMA_sqlAddslashes($pma_pw) . '\')');
        $result           = @PMA_mysql_query($local_query) or PMA_mysqlDie('', '', FALSE, $err_url);

        // Changes password cookie if required
        if ($cfg['Server']['auth_type'] == 'cookie') {
            setcookie('pma_cookie_password', base64_encode(PMA_blowfish_encrypt($pma_pw,$GLOBALS['cfg']['blowfish_secret'])), 0, $cookie_path, '', $is_https);
        } // end if
        // For http auth. mode, the "back" link will also enforce new
        // authentication
        $http_logout = ($cfg['Server']['auth_type'] == 'http')
                     ? '&amp;old_usr=relog'
                     : '';

        // Displays the page
        require_once('./header.inc.php');
        echo '<h1>' . $strChangePassword . '</h1>' . "\n\n";
        $show_query = 'y';
        PMA_showMessage($strUpdateProfileMessage);
        ?>
        <a href="index.php?<?php echo $common_url_query . $http_logout; ?>" target="_parent">
            <b><?php echo $strBack; ?></b></a>
        <?php
        exit();
    } // end if
} // end if


/**
 * If the "change password" form hasn't been submitted or the values submitted
 * aren't valid -> displays the form
 */
// Loads the headers
$js_to_run = 'user_password.js';
require_once('./header.inc.php');
echo '<h1>' . $strChangePassword . '</h1>' . "\n\n";

// Displays an error message if required
if (!empty($error_msg)) {
    echo '<p><b>' . $strError . '&nbsp;:&nbsp;' . $error_msg . '</b></p>' . "\n";
}

// loic1: autocomplete feature of IE kills the "onchange" event handler and it
//        must be replaced by the "onpropertychange" one in this case
$chg_evt_handler = (PMA_USR_BROWSER_AGENT == 'IE' && PMA_USR_BROWSER_VER >= 5)
                 ? 'onpropertychange'
                 : 'onchange';

// Displays the form
?>
<form method="post" action="./user_password.php" name="chgPassword" onsubmit="return checkPassword(this)">
    <?php echo PMA_generate_common_hidden_inputs(); ?>
    <table border="0">
    <tr>
        <td colspan="2">
            <input type="radio" name="nopass" value="1" onclick="pma_pw.value = ''; pma_pw2.value = ''; this.checked = true" />
            <?php echo $GLOBALS['strNoPassword'] . "\n"; ?>
        </td>
    </tr>
    <tr>
        <td>
            <input type="radio" name="nopass" value="0" checked="checked " />
            <?php echo $GLOBALS['strPassword']; ?>&nbsp;:&nbsp;
        </td>
        <td>
            <input type="password" name="pma_pw" size="10" class="textfield" <?php echo $chg_evt_handler; ?>="nopass[1].checked = true" />
            &nbsp;&nbsp;
            <?php echo $GLOBALS['strReType']; ?>&nbsp;:&nbsp;
            <input type="password" name="pma_pw2" size="10" class="textfield" <?php echo $chg_evt_handler; ?>="nopass[1].checked = true" />
        </td>
    </tr>
    <tr>
        <td colspan="2">&nbsp;</td>
    </tr>
    <tr>
        <td colspan="2">
            <input type="submit" value="<?php echo($strChange); ?>" />
        </td>
    </tr>
    </table>
</form>

<?php
/**
 * Displays the footer
 */
require_once('./footer.inc.php');
?>

[31337]

raczej nic tam niema.
(dodaj jeszcze te z require_once)

[Sardihan]

tam jest tylko decodowanie cookis base64 i blowfish - ale ten hash fo tego niepasuje

[TQM]

Blowfish jest tylko do ciasteczek uzywany tutaj...

Ten 16-bajtowy ciag to haslo a wlasciwie jego hash wygnerowany funkcja PASSWORD() w MySQL < 4.1 bo od wersji 4.1 w gore ten hash ma juz 41 bajtow a nie 16... Algorytm generowania hasha jest jakis specyficzny - tzn nigdzie nie podaja jak jest generowany, podaja tylko ze MySQL ma takie cos i ma swoj algorytm.

Ponizej hashe dla MySQL starszego niz 4.1 i dla 4.1 (zrodlo http://dev.mysql.com/doc/refman/5.0/...hashing.html):

mysql> SELECT PASSWORD('mypass');
+--------------------+
| PASSWORD('mypass') |
+--------------------+
| 6f8c114b58f2ce9e   |
+--------------------+

mysql> SELECT PASSWORD('mypass');
+-------------------------------------------+
| PASSWORD('mypass')                        |
+-------------------------------------------+
| *6C8989366EAF75BB670AD8EA7A7FC1176A95CEF4 |
+-------------------------------------------+

Poza tym strona http://phpsec.org/articles/2005/password-hashing.html podaje:

In MySQL you can generate hashes internally using the password(), md5(), or sha1 functions. password() is the function used for MySQL's own user authentication system. It returns a 16-byte string for MySQL versions prior to 4.1, and a 41-byte string (based on a double SHA-1 hash) for versions 4.1 and up. md5() is available from MySQL version 3.23.2 and sha1() was added later in 4.0.2.

To chyba tyle w temacie...