Concrete5 <= 5.7.3.1 Multiple Reflected Cross-Site Scripting Vulnerabilities
• Software Link:
• Affected Versions:
Version 5.7.3.1 and probably other versions.
• Vulnerabilities Description:
- The vulnerable code is located in /concrete/views/panels/details/page/versions.php:
5<? foreach($_REQUEST['cvID'] as $cvID) {
6 $tabs[] = array('view-version-' . $cvID, t('Version %s', $cvID), $checked);
7 $checked = false;
8}
9print $ih->tabs($tabs);
10foreach($_REQUEST['cvID'] as $cvID) { ?>
11
12 <div id="ccm-tab-content-view-version-<?=$cvID?>" style="display: <?=$display?>; height: 100%">
13 <iframe border="0" id="v<?=time()?>" frameborder="0" height="100%" width="100%" src="<?=REL_DIR_FILES_TOOLS_REQUIRED?>/pages/preview_version?cvID=<?=$cvID?>&cID=<?=$_REQUEST['cID']?>" />User input passed through the “cvID” and “cID” request parameters is not properly sanitized before being used to generate HTML output at lines 6 and 13. This can be exploited to conduct Reflected Cross-Site Scripting (XSS) attacks.
- The vulnerable code is located in /concrete/src/Form/Service/Widget/UserSelector.php:
17public function selectUser($fieldName, $uID = false, $javascriptFunc = 'ccm_triggerSelectUser') {
18 $selectedUID = 0;
19 if (isset($_REQUEST[$fieldName])) {
20 $selectedUID = $_REQUEST[$fieldName];
21 } else if ($uID > 0) {
22 $selectedUID = $uID;
23 }
24
25 $html = '';
26 $html .= '<div class="ccm-summary-selected-item"><div class="ccm-summary-selected-item-inner"><strong class="ccm-summary-selected-item-label">';
27 if ($selectedUID > 0) {
28 $ui = UserInfo::getByID($selectedUID);
29 $html .= $ui->getUserName();
30 }
31 $html .= '</strong></div>';
32 $identifier = new \Concrete\Core\Utility\Service\Identifier();
33 $selector = $identifier->getString(32);
34 $html .= '<a class="ccm-sitemap-select-item" data-form-user-selector="' . $selector . '" dialog-append-buttons="true" dialog-width="90%" dialog-height="70%" dialog-modal="false" dialog-title="' . t('Choose User') . '" href="' . URL::to('/ccm/system/dialogs/user/search') . '">' . t('Select User') . '</a>';
35 $html .= '<input type="hidden" data-form-user-selector-input="' . $selector . '" name="' . $fieldName . '" value="' . $selectedUID . '">';
36 $html .= '</div>';User input passed through the “uID” request parameter is not properly sanitized before being used to generate HTML output at line 35. This can be exploited to conduct Reflected Cross-Site Scripting (XSS) attacks.
- The vulnerable code is located in /concrete/elements/group/search.php:
4$searchRequest = $_REQUEST;
5$result = Loader::helper('json')->encode($controller->getSearchResultObject()->getJSONObject());
6$tree = GroupTree::get();
7$guestGroupNode = GroupTreeNode::getTreeNodeByGroupID(GUEST_GROUP_ID);
8$registeredGroupNode = GroupTreeNode::getTreeNodeByGroupID(REGISTERED_GROUP_ID);
9?>
10
11<style type="text/css">
12 div[data-search=groups] form.ccm-search-fields {
13 margin-left: 0px !important;
14 }
15</style>
16
17<div data-search="groups">
18<script type="text/template" data-template="search-form">
19<form role="form" data-search-form="groups" action="<?=URL::to('/ccm/system/search/groups/submit')?>" class="form-inline ccm-search-fields ccm-search-fields-none">
20 <input type="hidden" name="filter" value="<?php echo $searchRequest['filter']?>" />User input passed through the “filter” request parameter is not properly sanitized before being used to generate HTML output at line 20. This can be exploited to conduct Reflected Cross-Site Scripting (XSS) attacks.
-
User input passed through the “msCountry” POST parameter to /index.php/dashboard/system/multilingual/setup/load_icon is not properly sanitized before being used to generate HTML output. This can be exploited to conduct Reflected Cross-Site Scripting (XSS) attacks.
-
User input passed through the “pageURL” POST parameter to /index.php/dashboard/pages/single is not properly sanitized before being used to generate HTML output. This can be exploited to conduct Reflected Cross-Site Scripting (XSS) attacks.
-
The vulnerable code is located in /concrete/attributes/select/form.php:
55$vals = $this->post('atSelectNewOption');
56if (is_array($vals)) {
57 foreach($vals as $v) { ?>
58 <div class="newAttrValue">
59 <?=$form->hidden($this->field('atSelectNewOption') . '[]', $v)?>
60 <span class="badge"><?php echo $v?></span>User input passed through the “atSelectNewOption” POST parameter is not properly sanitized before being used to generate HTML output at line 60. This can be exploited to conduct Reflected Cross-Site Scripting (XSS) attacks.
• Solution:
Update to version 5.7.4 or later.
• Disclosure Timeline:
[05/05/2015] – Vulnerabilities details sent through HackerOne
[05/05/2015] – Vendor said that two vulnerabilities were already fixed in development
[07/05/2015] – Version 5.7.4 released along with the patch for these vulnerabilities
[06/06/2015] – Vulnerabilities publicly disclosed on HackerOne
[11/06/2015] – CVE number requested
[11/06/2015] – Publication of this advisory
[23/06/2015] – CVE number assigned
• CVE Reference:
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2015-4721 to these vulnerabilities.
• Credits:
Vulnerabilities discovered by Egidio Romano of Minded Security.