An issue was discovered in dotCMS through 3.6.1. The findChildrenByFilter() function which is called by the web accessible path /categoriesServlet performs string interpolation and direct SQL query execution. SQL quote escaping and a keyword blacklist were implemented in a new class, SQLUtil (main/java/com/dotmarketing/common/util/SQLUtil.java), as part of the remediation of CVE-2016-8902; however, these can be overcome in the case of the q and inode parameters to the /categoriesServlet path. Overcoming these controls permits a number of blind boolean SQL injection vectors in either parameter. The /categoriesServlet web path can be accessed remotely and without authentication in a default dotCMS deployment.
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/96259 | vdb entry |
| https://github.com/xdrr/webapp-exploits/blob/master/vendors/dotcms/2017.01.blind-sqli/dotcms-dump.sh | third party advisory exploit |
| http://seclists.org/fulldisclosure/2017/Feb/34 | mailing list third party advisory exploit |
| http://dotcms.com/security/SI-39 | vendor advisory |
| https://www.exploit-db.com/exploits/41377/ | exploit |