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Concrete5 <= 5.7.4 (Access.php) SQL Injection Vulnerability
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[-] Software Link:
https://www.concrete5.org/
[-] Affected Versions:
Version 5.7.3.1, 5.7.4, and probably other versions.
[-] Vulnerability Description:
The vulnerable code is located in /concrete/src/Permission/Access/Access.php:
168. protected function buildAssignmentFilterString($accessType, $filterEntities)
169. {
170. $peIDs = '';
171. $filters = array();
172. if (count($filterEntities) > 0) {
173. foreach ($filterEntities as $ent) {
174. $filters[] = $ent->getAccessEntityID();
175. }
176. $peIDs .= 'and peID in (' . implode($filters, ',') . ')';
177. }
178. if ($accessType == 0) {
179. $accessType = '';
180. } else {
181. $accessType = ' and accessType = ' . $accessType;
182. }
The Access::buildAssignmentFilterString() method uses its $accessType parameter to construct a SQL query
without a proper validation at line 181. This can be exploited to inject and execute arbitrary SQL commands.
Successful exploitation of this vulnerability requires an account with privileges to edit page permissions.
[-] Solution:
Update to version 5.7.4.1 or later.
[-] Disclosure Timeline:
[05/05/2015] - Vulnerability details sent through HackerOne
[12/05/2015] - Vendor said a patch has been committed and will be available in the next version
[12/05/2015] - Version 5.7.4.1 released along with the patch for this vulnerability
[11/06/2015] - Vulnerability publicly disclosed on HackerOne
[11/06/2014] - CVE number requested
[11/06/2014] - Publication of this advisory
[-] CVE Reference:
The Common Vulnerabilities and Exposures project (cve.mitre.org) has not assigned a name to this vulnerability yet.
[-] Credits:
Vulnerability discovered by Egidio Romano of Minded Security.
[-] Original Advisory:
http://karmainsecurity.com/KIS-2015-03
[-] Other References:
https://hackerone.com/reports/59664
