skodak
1087 lines
42 KiB
PHP
1087 lines
42 KiB
PHP
<?php //$Id$
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// //
|
|
// NOTICE OF COPYRIGHT //
|
|
// //
|
|
// Moodle - Modular Object-Oriented Dynamic Learning Environment //
|
|
// http://moodle.org //
|
|
// //
|
|
// Copyright (C) 1999 onwards Martin Dougiamas http://dougiamas.com //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation; either version 2 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License for more details: //
|
|
// //
|
|
// http://www.gnu.org/copyleft/gpl.html //
|
|
// //
|
|
///////////////////////////////////////////////////////////////////////////
|
|
|
|
require_once("$CFG->libdir/adminlib.php");
|
|
|
|
|
|
define('REPORT_SECURITY_OK', 'ok');
|
|
define('REPORT_SECURITY_INFO', 'info');
|
|
define('REPORT_SECURITY_WARNING', 'warning');
|
|
define('REPORT_SECURITY_SERIOUS', 'serious');
|
|
define('REPORT_SECURITY_CRITICAL', 'critical');
|
|
|
|
function report_security_hide_timearning() {
|
|
echo '<script type="text/javascript">
|
|
//<![CDATA[
|
|
var el = document.getElementById("timewarning");
|
|
el.setAttribute("class", "timewarninghidden");
|
|
//]]>
|
|
</script>';
|
|
|
|
}
|
|
|
|
function report_security_get_issue_list() {
|
|
return array(
|
|
'report_security_check_globals',
|
|
'report_security_check_unsecuredataroot',
|
|
'report_security_check_displayerrors',
|
|
'report_security_check_noauth',
|
|
'report_security_check_embed',
|
|
'report_security_check_mediafilterswf',
|
|
'report_security_check_openprofiles',
|
|
'report_security_check_google',
|
|
'report_security_check_passwordpolicy',
|
|
'report_security_check_emailchangeconfirmation',
|
|
'report_security_check_cookiesecure',
|
|
'report_security_check_configrw',
|
|
'report_security_check_riskxss',
|
|
'report_security_check_riskadmin',
|
|
'report_security_check_defaultuserrole',
|
|
'report_security_check_guestrole',
|
|
'report_security_check_frontpagerole',
|
|
'report_security_check_defaultcourserole',
|
|
'report_security_check_courserole',
|
|
|
|
);
|
|
}
|
|
|
|
function report_security_doc_link($issue, $name) {
|
|
global $CFG;
|
|
|
|
if (empty($CFG->docroot)) {
|
|
return $name;
|
|
}
|
|
|
|
$lang = str_replace('_utf8', '', current_language());
|
|
|
|
$str = "<a onclick=\"this.target='docspopup'\" href=\"$CFG->docroot/$lang/report/security/$issue\">";
|
|
$str .= "<img class=\"iconhelp\" src=\"$CFG->httpswwwroot/pix/docs.gif\" alt=\"\" />$name</a>";
|
|
|
|
return $str;
|
|
}
|
|
|
|
///=============================================
|
|
/// Issue checks
|
|
///=============================================
|
|
|
|
|
|
/**
|
|
* Verifies register globals PHP setting.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_globals($detailed=false) {
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_globals';
|
|
$result->name = get_string('check_globals_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = null;
|
|
|
|
if (ini_get_bool('register_globals')) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_globals_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_globals_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_globals_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies unsupported noauth setting
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_noauth($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_noauth';
|
|
$result->name = get_string('check_noauth_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=manageauths\">".get_string('authsettings', 'admin').'</a>';
|
|
|
|
if (is_enabled_auth('none')) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_noauth_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_noauth_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_noauth_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies if password policy set
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_passwordpolicy($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_passwordpolicy';
|
|
$result->name = get_string('check_passwordpolicy_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=sitepolicies\">".get_string('sitepolicies', 'admin').'</a>';
|
|
|
|
if (empty($CFG->passwordpolicy)) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_passwordpolicy_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_passwordpolicy_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_passwordpolicy_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies sloppy embedding - this should have been removed long ago!!
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_embed($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_embed';
|
|
$result->name = get_string('check_embed_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=sitepolicies\">".get_string('sitepolicies', 'admin').'</a>';
|
|
|
|
if (!empty($CFG->allowobjectembed)) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_embed_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_embed_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_embed_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies sloppy swf embedding - this should have been removed long ago!!
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_mediafilterswf($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_mediafilterswf';
|
|
$result->name = get_string('check_mediafilterswf_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=filtersettingfiltermediaplugin\">".get_string('filtersettings', 'admin').'</a>';
|
|
|
|
if (!empty($CFG->textfilters)) {
|
|
$activefilters = explode(',', $CFG->textfilters);
|
|
} else {
|
|
$activefilters = array();
|
|
}
|
|
|
|
if (array_search('filter/mediaplugin', $activefilters) !== false and !empty($CFG->filter_mediaplugin_enable_swf)) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_mediafilterswf_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_mediafilterswf_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_mediafilterswf_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies fatal misconfiguration of dataroot
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_unsecuredataroot($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_unsecuredataroot';
|
|
$result->name = get_string('check_unsecuredataroot_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = null;
|
|
|
|
$insecuredataroot = is_dataroot_insecure(true);
|
|
|
|
if ($insecuredataroot == INSECURE_DATAROOT_WARNING) {
|
|
$result->status = REPORT_SECURITY_SERIOUS;
|
|
$result->info = get_string('check_unsecuredataroot_warning', 'report_security', $CFG->dataroot);
|
|
|
|
} else if ($insecuredataroot == INSECURE_DATAROOT_ERROR) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_unsecuredataroot_error', 'report_security', $CFG->dataroot);
|
|
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_unsecuredataroot_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_unsecuredataroot_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies disaplying of errors - problem for lib files and 3rd party code
|
|
* because we can not disable debugging in these scripts (they do not include config.php)
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_displayerrors($detailed=false) {
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_displayerrors';
|
|
$result->name = get_string('check_displayerrors_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = null;
|
|
|
|
if (defined('WARN_DISPLAY_ERRORS_ENABLED')) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_displayerrors_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_displayerrors_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_displayerrors_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies open profiles - originaly open by default, not anymore because spammer abused it a lot
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_openprofiles($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_openprofiles';
|
|
$result->name = get_string('check_openprofiles_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=sitepolicies\">".get_string('sitepolicies', 'admin').'</a>';
|
|
|
|
if (empty($CFG->forcelogin) and empty($CFG->forceloginforprofiles)) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_openprofiles_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_openprofiles_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_openprofiles_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies google access not combined with disabled guest access
|
|
* because attackers might gain guest access by modifying browser signature.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_google($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_google';
|
|
$result->name = get_string('check_google_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=sitepolicies\">".get_string('sitepolicies', 'admin').'</a>';
|
|
|
|
if (empty($CFG->opentogoogle)) {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_google_ok', 'report_security');
|
|
} else if (!empty($CFG->guestloginbutton)) {
|
|
$result->status = REPORT_SECURITY_INFO;
|
|
$result->info = get_string('check_google_info', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_SERIOUS;
|
|
$result->info = get_string('check_google_error', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_google_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies email confirmation - spammers were changing mails very often
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_emailchangeconfirmation($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_emailchangeconfirmation';
|
|
$result->name = get_string('check_emailchangeconfirmation_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=sitepolicies\">".get_string('sitepolicies', 'admin').'</a>';
|
|
|
|
if (empty($CFG->emailchangeconfirmation)) {
|
|
if (empty($CFG->allowemailaddresses)) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_emailchangeconfirmation_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_INFO;
|
|
$result->info = get_string('check_emailchangeconfirmation_info', 'report_security');
|
|
}
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_emailchangeconfirmation_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_emailchangeconfirmation_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies if https enabled only secure cookies allowed,
|
|
* this prevents redirections and sending of cookies to unsecure port.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_cookiesecure($detailed=false) {
|
|
global $CFG;
|
|
|
|
if (strpos($CFG->wwwroot, 'https://') !== 0) {
|
|
return null;
|
|
}
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_cookiesecure';
|
|
$result->name = get_string('check_cookiesecure_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=httpsecurity\">".get_string('httpsecurity', 'admin').'</a>';
|
|
|
|
if (empty($CFG->cookiesecure)) {
|
|
$result->status = REPORT_SECURITY_SERIOUS;
|
|
$result->info = get_string('check_cookiesecure_error', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_cookiesecure_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_cookiesecure_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies config.php is not writable anymore after installation,
|
|
* config files were changed on several outdated server.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_configrw($detailed=false) {
|
|
global $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_configrw';
|
|
$result->name = get_string('check_configrw_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = null;
|
|
|
|
if (is_writable($CFG->dirroot.'/config.php')) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_configrw_warning', 'report_security');
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_configrw_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_configrw_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Lists all users with XSS risk, it would be great to combine this with risk trusts in user table,
|
|
* unfortunately nobody implemented user trust UI yet :-(
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_riskxss($detailed=false) {
|
|
global $DB;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_riskxss';
|
|
$result->name = get_string('check_riskxss_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->link = null;
|
|
|
|
$params = array('capallow'=>CAP_ALLOW);
|
|
|
|
$sqlfrom = "FROM (SELECT rcx.*
|
|
FROM {role_capabilities} rcx
|
|
JOIN {capabilities} cap ON (cap.name = rcx.capability AND ".$DB->sql_bitand('cap.riskbitmask', RISK_XSS)." <> 0)
|
|
WHERE rcx.permission = :capallow) rc,
|
|
{context} c,
|
|
{context} sc,
|
|
{role_assignments} ra,
|
|
{user} u
|
|
WHERE c.id = rc.contextid
|
|
AND (sc.path = c.path OR sc.path LIKE ".$DB->sql_concat('c.path', "'/%'")." OR c.path LIKE ".$DB->sql_concat('sc.path', "'/%'").")
|
|
AND u.id = ra.userid AND u.deleted = 0
|
|
AND ra.contextid = sc.id AND ra.roleid = rc.roleid";
|
|
|
|
$count = $DB->count_records_sql("SELECT COUNT(DISTINCT u.id) $sqlfrom", $params);
|
|
|
|
$result->info = get_string('check_riskxss_warning', 'report_security', $count);
|
|
|
|
if ($detailed) {
|
|
$users = $DB->get_records_sql("SELECT DISTINCT u.id, u.firstname, u.lastname, u.picture, u.imagealt $sqlfrom", $params);
|
|
foreach ($users as $uid=>$user) {
|
|
$users[$uid] = fullname($user);
|
|
}
|
|
$users = implode(', ', $users);
|
|
$result->details = get_string('check_riskxss_details', 'report_security', $users);
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies sanity of default user role.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_defaultuserrole($detailed=false) {
|
|
global $DB, $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_defaultuserrole';
|
|
$result->name = get_string('check_defaultuserrole_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=userpolicies\">".get_string('userpolicies', 'admin').'</a>';;
|
|
|
|
if (!$default_role = $DB->get_record('role', array('id'=>$CFG->defaultuserroleid))) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_defaultuserrole_notset', 'report_security');
|
|
$result->details = $result->info;
|
|
|
|
return $result;
|
|
}
|
|
|
|
// first test if do anything enabled - that would be really crazy!
|
|
$params = array('doanything'=>'moodle/site:doanything', 'capallow'=>CAP_ALLOW, 'roleid'=>$default_role->id);
|
|
$sql = "SELECT COUNT(DISTINCT rc.contextid)
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability = :doanything
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
$anythingcount = $DB->count_records_sql($sql, $params);
|
|
|
|
// risky caps - usually very dangerous
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$default_role->id);
|
|
$sql = "SELECT COUNT(DISTINCT rc.contextid)
|
|
FROM {role_capabilities} rc
|
|
JOIN {capabilities} cap ON cap.name = rc.capability
|
|
WHERE ".$DB->sql_bitand('cap.riskbitmask', (RISK_XSS | RISK_CONFIG | RISK_DATALOSS))." <> 0
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
$riskycount = $DB->count_records_sql($sql, $params);
|
|
|
|
// default role can not have view cap in all courses - this would break moodle badly
|
|
$viewcap = $DB->record_exists('role_capabilities', array('roleid'=>$default_role->id, 'permission'=>CAP_ALLOW, 'capability'=>'moodle/course:view'));
|
|
|
|
// it may have either no or 'user' legacy type - nothing else, or else it would break during upgrades badly
|
|
$legacyok = false;
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$default_role->id, 'legacy'=>'moodle/legacy:%');
|
|
$sql = "SELECT rc.capability, 1
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability LIKE :legacy
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
$legacycaps = $DB->get_records_sql($sql, $params);
|
|
if (!$legacycaps) {
|
|
$legacyok = true;
|
|
} else if (count($legacycaps) == 1 and isset($legacycaps['moodle/legacy:user'])) {
|
|
$legacyok = true;
|
|
}
|
|
|
|
if ($anythingcount or $riskycount or $viewcap or !$legacyok) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_defaultuserrole_error', 'report_security', format_string($default_role->name));
|
|
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_defaultuserrole_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_defaultuserrole_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies sanity of guest role
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_guestrole($detailed=false) {
|
|
global $DB, $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_guestrole';
|
|
$result->name = get_string('check_guestrole_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=userpolicies\">".get_string('userpolicies', 'admin').'</a>';;
|
|
|
|
if (!$guest_role = $DB->get_record('role', array('id'=>$CFG->guestroleid))) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_guestrole_notset', 'report_security');
|
|
$result->details = $result->info;
|
|
|
|
return $result;
|
|
}
|
|
|
|
// first test if do anything enabled - that would be really crazy!
|
|
$params = array('doanything'=>'moodle/site:doanything', 'capallow'=>CAP_ALLOW, 'roleid'=>$guest_role->id);
|
|
$sql = "SELECT COUNT(DISTINCT rc.contextid)
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability = :doanything
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
$anythingcount = $DB->count_records_sql($sql, $params);
|
|
|
|
// risky caps - usually very dangerous
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$guest_role->id);
|
|
$sql = "SELECT COUNT(DISTINCT rc.contextid)
|
|
FROM {role_capabilities} rc
|
|
JOIN {capabilities} cap ON cap.name = rc.capability
|
|
WHERE ".$DB->sql_bitand('cap.riskbitmask', (RISK_XSS | RISK_CONFIG | RISK_DATALOSS))." <> 0
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
$riskycount = $DB->count_records_sql($sql, $params);
|
|
|
|
// it may have either no or 'guest' legacy type - nothing else, or else it would break during upgrades badly
|
|
$legacyok = false;
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$guest_role->id, 'legacy'=>'moodle/legacy:%');
|
|
$sql = "SELECT rc.capability, 1
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability LIKE :legacy
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
$legacycaps = $DB->get_records_sql($sql, $params);
|
|
if (!$legacycaps) {
|
|
$legacyok = true;
|
|
} else if (count($legacycaps) == 1 and isset($legacycaps['moodle/legacy:guest'])) {
|
|
$legacyok = true;
|
|
}
|
|
|
|
if ($anythingcount or $riskycount or !$legacyok) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_guestrole_error', 'report_security', format_string($guest_role->name));
|
|
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_guestrole_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_guestrole_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies sanity of frontpage role
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_frontpagerole($detailed=false) {
|
|
global $DB, $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_frontpagerole';
|
|
$result->name = get_string('check_frontpagerole_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=frontpagesettings\">".get_string('frontpagesettings','admin').'</a>';;
|
|
|
|
if (!$frontpage_role = $DB->get_record('role', array('id'=>$CFG->defaultfrontpageroleid))) {
|
|
$result->status = REPORT_SECURITY_INFO;
|
|
$result->info = get_string('check_frontpagerole_notset', 'report_security');
|
|
$result->details = get_string('check_frontpagerole_details', 'report_security');
|
|
|
|
return $result;
|
|
}
|
|
|
|
// first test if do anything enabled - that would be really crazy!
|
|
$params = array('doanything'=>'moodle/site:doanything', 'capallow'=>CAP_ALLOW, 'roleid'=>$frontpage_role->id);
|
|
$sql = "SELECT COUNT(DISTINCT rc.contextid)
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability = :doanything
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
$anythingcount = $DB->count_records_sql($sql, $params);
|
|
|
|
// risky caps - usually very dangerous
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$frontpage_role->id);
|
|
$sql = "SELECT COUNT(DISTINCT rc.contextid)
|
|
FROM {role_capabilities} rc
|
|
JOIN {capabilities} cap ON cap.name = rc.capability
|
|
WHERE ".$DB->sql_bitand('cap.riskbitmask', (RISK_XSS | RISK_CONFIG | RISK_DATALOSS))." <> 0
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
$riskycount = $DB->count_records_sql($sql, $params);
|
|
|
|
// there is no legacy role type for frontpage yet - anyway we can not allow teachers or admins there!
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$frontpage_role->id, 'legacy'=>'moodle/legacy:%');
|
|
$sql = "SELECT rc.capability, 1
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability LIKE :legacy
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
$legacycaps = $DB->get_records_sql($sql, $params);
|
|
$legacyok = (!isset($legacycaps['moodle/legacy:teacher'])
|
|
and !isset($legacycaps['moodle/legacy:editingteacher'])
|
|
and !isset($legacycaps['moodle/legacy:coursecreator'])
|
|
and !isset($legacycaps['moodle/legacy:admin']));
|
|
|
|
if ($anythingcount or $riskycount or !$legacyok) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_frontpagerole_error', 'report_security', format_string($frontpage_role->name));
|
|
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_frontpagerole_ok', 'report_security');
|
|
}
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_frontpagerole_details', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies sanity of site default course role.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_defaultcourserole($detailed=false) {
|
|
global $DB, $CFG;
|
|
|
|
$problems = array();
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_defaultcourserole';
|
|
$result->name = get_string('check_defaultcourserole_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=userpolicies\">".get_string('userpolicies', 'admin').'</a>';;
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_defaultcourserole_details', 'report_security');
|
|
}
|
|
|
|
if (!$student_role = $DB->get_record('role', array('id'=>$CFG->defaultcourseroleid))) {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$result->info = get_string('check_defaultcourserole_notset', 'report_security');
|
|
$result->details = get_string('check_defaultcourserole_details', 'report_security');
|
|
|
|
return $result;
|
|
}
|
|
|
|
// first test if do anything enabled - that would be really crazy!
|
|
$params = array('doanything'=>'moodle/site:doanything', 'capallow'=>CAP_ALLOW, 'roleid'=>$student_role->id);
|
|
$sql = "SELECT DISTINCT rc.contextid
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability = :doanything
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
if ($anything_contexts = $DB->get_records_sql($sql, $params)) {
|
|
foreach($anything_contexts as $contextid) {
|
|
if ($contextid == SYSCONTEXTID) {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/define.php?action=view&roleid=$CFG->defaultcourseroleid";
|
|
} else {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/override.php?contextid=$contextid&roleid=$CFG->defaultcourseroleid";
|
|
}
|
|
$problems[] = get_string('check_defaultcourserole_anything', 'report_security', $a);
|
|
}
|
|
}
|
|
|
|
// risky caps - usually very dangerous
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$student_role->id);
|
|
$sql = "SELECT DISTINCT rc.contextid
|
|
FROM {role_capabilities} rc
|
|
JOIN {capabilities} cap ON cap.name = rc.capability
|
|
WHERE ".$DB->sql_bitand('cap.riskbitmask', (RISK_XSS | RISK_CONFIG | RISK_DATALOSS))." <> 0
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
|
|
if ($riskycontexts = $DB->get_records_sql($sql, $params)) {
|
|
foreach($riskycontexts as $contextid=>$unused) {
|
|
if ($contextid == SYSCONTEXTID) {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/define.php?action=view&roleid=$CFG->defaultcourseroleid";
|
|
} else {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/override.php?contextid=$contextid&roleid=$CFG->defaultcourseroleid";
|
|
}
|
|
$problems[] = get_string('check_defaultcourserole_risky', 'report_security', $a);
|
|
}
|
|
}
|
|
|
|
// course creator or administrator does not make any sense here
|
|
$params = array('capallow'=>CAP_ALLOW, 'roleid'=>$student_role->id, 'legacy'=>'moodle/legacy:%');
|
|
$sql = "SELECT rc.capability, 1
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability LIKE :legacy
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid = :roleid";
|
|
$legacycaps = $DB->get_records_sql($sql, $params);
|
|
if (isset($legacycaps['moodle/legacy:coursecreator']) or isset($legacycaps['moodle/legacy:admin'])) {
|
|
$problems[] = get_string('check_defaultcourserole_legacy', 'report_security');
|
|
}
|
|
|
|
if ($problems) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_defaultcourserole_error', 'report_security', format_string($student_role->name));
|
|
if ($detailed) {
|
|
$result->details .= "<ul>";
|
|
foreach ($problems as $problem) {
|
|
$result->details .= "<li>$problem</li>";
|
|
}
|
|
$result->details .= "</ul>";
|
|
}
|
|
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_defaultcourserole_ok', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Verifies sanity of default roles in courses.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_courserole($detailed=false) {
|
|
global $DB, $CFG, $SITE;
|
|
|
|
$problems = array();
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_courserole';
|
|
$result->name = get_string('check_courserole_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = null;
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_courserole_details', 'report_security');
|
|
}
|
|
|
|
// get list of all student roles selected in courses excluding the default course role
|
|
$params = array('siteid'=>$SITE->id, 'defaultcourserole'=>$CFG->defaultcourseroleid);
|
|
$sql = "SELECT r.*
|
|
FROM {role} r
|
|
JOIN {course} c ON c.defaultrole = r.id
|
|
WHERE c.id <> :siteid AND r.id <> :defaultcourserole";
|
|
|
|
if (!$student_roles = $DB->get_records_sql($sql, $params)) {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_courserole_notyet', 'report_security');
|
|
$result->details = get_string('check_courserole_details', 'report_security');
|
|
|
|
return $result;
|
|
}
|
|
|
|
$roleids = array_keys($student_roles);
|
|
|
|
$sql = "SELECT DISTINCT rc.roleid
|
|
FROM {role_capabilities} rc
|
|
WHERE (rc.capability = :coursecreator OR rc.capability = :admin OR rc.capability = :teacher OR rc.capability = :editingteacher)
|
|
AND rc.permission = ".CAP_ALLOW."";
|
|
$params = array('coursecreator' => 'moodle/legacy:coursecreator',
|
|
'admin' => 'moodle/legacy:admin',
|
|
'teacher' => 'moodle/legacy:teacher',
|
|
'editingteacher' => 'moodle/legacy:editingteacher');
|
|
|
|
$riskyroleids = $DB->get_records_sql($sql, $params);
|
|
$riskyroleids = array_keys($riskyroleids);
|
|
|
|
|
|
// first test if do anything enabled - that would be really crazy!!!!!!
|
|
list($inroles, $params) = $DB->get_in_or_equal($roleids, SQL_PARAMS_NAMED, 'r0', true);
|
|
$params = array_merge($params, array('doanything'=>'moodle/site:doanything', 'capallow'=>CAP_ALLOW));
|
|
$params['doanything'] = 'moodle/site:doanything';
|
|
$params['capallow'] = CAP_ALLOW;
|
|
$sql = "SELECT rc.roleid, rc.contextid
|
|
FROM {role_capabilities} rc
|
|
WHERE rc.capability = :doanything
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid $inroles
|
|
GROUP BY rc.roleid, rc.contextid
|
|
ORDER BY rc.roleid, rc.contextid";
|
|
|
|
$rs = $DB->get_recordset_sql($sql, $params);
|
|
foreach($rs as $res) {
|
|
$roleid = $res->roleid;
|
|
$contextid = $res->contextid;
|
|
if ($contextid == SYSCONTEXTID) {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/define.php?action=view&roleid=$roleid";
|
|
} else {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/override.php?contextid=$contextid&roleid=$roleid";
|
|
}
|
|
$problems[] = get_string('check_courserole_anything', 'report_security', $a);
|
|
}
|
|
$rs->close();
|
|
|
|
// any XSS legacy cap does not make any sense here!
|
|
list($inroles, $params) = $DB->get_in_or_equal($roleids, SQL_PARAMS_NAMED, 'r0', true);
|
|
$sql = "SELECT DISTINCT c.id, c.shortname
|
|
FROM {course} c
|
|
WHERE c.defaultrole $inroles
|
|
ORDER BY c.sortorder";
|
|
if ($courses = $DB->get_records_sql($sql, $params)) {
|
|
foreach ($courses as $course) {
|
|
$a = (object)array('url'=>"$CFG->wwwroot/course/edit.php?id=$course->id", 'shortname'=>$course->shortname);
|
|
$problems[] = get_string('check_courserole_riskylegacy', 'report_security', $a);
|
|
}
|
|
}
|
|
|
|
// risky caps in any level - usually very dangerous!!
|
|
if ($checkroles = array_diff($roleids, $riskyroleids)) {
|
|
list($inroles, $params) = $DB->get_in_or_equal($checkroles, SQL_PARAMS_NAMED, 'r0', true);
|
|
$params = array_merge($params, array('capallow'=>CAP_ALLOW));
|
|
$sql = "SELECT rc.roleid, rc.contextid
|
|
FROM {role_capabilities} rc
|
|
JOIN {capabilities} cap ON cap.name = rc.capability
|
|
WHERE ".$DB->sql_bitand('cap.riskbitmask', (RISK_XSS | RISK_CONFIG | RISK_DATALOSS))." <> 0
|
|
AND rc.permission = :capallow
|
|
AND rc.roleid $inroles
|
|
GROUP BY rc.roleid, rc.contextid
|
|
ORDER BY rc.roleid, rc.contextid";
|
|
$rs = $DB->get_recordset_sql($sql, $params);
|
|
foreach($rs as $res) {
|
|
$roleid = $res->roleid;
|
|
$contextid = $res->contextid;
|
|
if ($contextid == SYSCONTEXTID) {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/define.php?action=view&roleid=$roleid";
|
|
} else {
|
|
$a = "$CFG->wwwroot/$CFG->admin/roles/override.php?contextid=$contextid&roleid=$roleid";
|
|
}
|
|
$problems[] = get_string('check_courserole_risky', 'report_security', $a);
|
|
}
|
|
$rs->close();
|
|
}
|
|
|
|
|
|
if ($problems) {
|
|
$result->status = REPORT_SECURITY_CRITICAL;
|
|
$result->info = get_string('check_courserole_error', 'report_security');
|
|
if ($detailed) {
|
|
$result->details .= "<ul>";
|
|
foreach ($problems as $problem) {
|
|
$result->details .= "<li>$problem</li>";
|
|
}
|
|
$result->details .= "</ul>";
|
|
}
|
|
|
|
} else {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_courserole_ok', 'report_security');
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Lists all admins.
|
|
* @param bool $detailed
|
|
* @return object result
|
|
*/
|
|
function report_security_check_riskadmin($detailed=false) {
|
|
global $DB, $CFG;
|
|
|
|
$result = new object();
|
|
$result->issue = 'report_security_check_riskadmin';
|
|
$result->name = get_string('check_riskadmin_name', 'report_security');
|
|
$result->info = null;
|
|
$result->details = null;
|
|
$result->status = null;
|
|
$result->link = null;
|
|
|
|
$params = array('doanything'=>'moodle/site:doanything', 'syscontextid'=>SYSCONTEXTID, 'capallow'=>CAP_ALLOW);
|
|
|
|
$sql = "SELECT DISTINCT u.id, u.firstname, u.lastname, u.picture, u.imagealt, u.email
|
|
FROM {role_capabilities} rc
|
|
JOIN {role_assignments} ra ON (ra.contextid = rc.contextid AND ra.roleid = rc.roleid)
|
|
JOIN {user} u ON u.id = ra.userid
|
|
WHERE rc.capability = :doanything
|
|
AND rc.permission = :capallow
|
|
AND u.deleted = 0
|
|
AND rc.contextid = :syscontextid";
|
|
|
|
$admins = $DB->get_records_sql($sql, $params);
|
|
$admincount = count($admins);
|
|
|
|
$sqlunsup = "SELECT u.id, u.firstname, u.lastname, u.picture, u.imagealt, u.email, ra.contextid, ra.roleid
|
|
FROM (SELECT rcx.*
|
|
FROM {role_capabilities} rcx
|
|
WHERE rcx.capability = :doanything AND rcx.permission = :capallow) rc,
|
|
{context} c,
|
|
{context} sc,
|
|
{role_assignments} ra,
|
|
{user} u
|
|
WHERE c.id = rc.contextid
|
|
AND (sc.path = c.path OR sc.path LIKE ".$DB->sql_concat('c.path', "'/%'")." OR c.path LIKE ".$DB->sql_concat('sc.path', "'/%'").")
|
|
AND u.id = ra.userid AND u.deleted = 0
|
|
AND ra.contextid = sc.id AND ra.roleid = rc.roleid AND ra.contextid <> :syscontextid
|
|
GROUP BY u.id, u.firstname, u.lastname, u.picture, u.imagealt, u.email, ra.contextid, ra.roleid
|
|
ORDER BY u.lastname, u.firstname";
|
|
|
|
$unsupcount = $DB->count_records_sql("SELECT COUNT('x') FROM ($sqlunsup) unsup", $params);
|
|
|
|
if ($detailed) {
|
|
foreach ($admins as $uid=>$user) {
|
|
$url = "$CFG->wwwroot/user/view.php?id=$user->id";
|
|
$admins[$uid] = '<li><a href="'.$url.'">'.fullname($user).' ('.$user->email.')</a></li>';
|
|
}
|
|
$admins = '<ul>'.implode($admins).'</ul>';
|
|
}
|
|
|
|
if (!$unsupcount) {
|
|
$result->status = REPORT_SECURITY_OK;
|
|
$result->info = get_string('check_riskadmin_ok', 'report_security', $admincount);
|
|
|
|
if ($detailed) {
|
|
$result->details = get_string('check_riskadmin_detailsok', 'report_security', $admins);
|
|
}
|
|
|
|
} else {
|
|
$result->status = REPORT_SECURITY_WARNING;
|
|
$a = (object)array('admincount'=>$admincount, 'unsupcount'=>$unsupcount);
|
|
$result->info = get_string('check_riskadmin_warning', 'report_security', $a);
|
|
|
|
if ($detailed) {
|
|
$rs = $DB->get_recordset_sql($sqlunsup, $params);
|
|
$users = array();
|
|
foreach ($rs as $user) {
|
|
$url = "$CFG->wwwroot/$CFG->admin/roles/assign.php?contextid=$user->contextid&roleid=$user->roleid";
|
|
$a = (object)array('fullname'=>fullname($user), 'url'=>$url, 'email'=>$user->email);
|
|
$users[] = '<li>'.get_string('check_riskadmin_unassign', 'report_security', $a).'</li>';
|
|
}
|
|
$rs->close();
|
|
$users = '<ul>'.implode($users).'</ul>';
|
|
$a = (object)array('admins'=>$admins, 'unsupported'=>$users);
|
|
$result->details = get_string('check_riskadmin_detailswarning', 'report_security', $a);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|