CVE-2016-9182 Auth bypass in n/a
Attackers can bypass permission checks in Exponent CMS by using capitalized method names, allowing unauthorized access to restricted actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-9182?
CVE-2016-9182 is a high-severity authentication bypass vulnerability in Exponentcms Exponent Cms, published on 4 Nov 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Exponent CMS 2.4 uses PHP reflection to call a method of a controller class, and then uses the method name to check user permission. But, the method name in PHP reflection is case insensitive, and Exponent CMS permits undefined actions to execute by default, so an attacker can use a capitalized method name to bypass the permission check, e.g., controller=expHTMLEditor&action=preview&editor=ckeditor and controller=expHTMLEditor&action=Preview&editor=ckeditor. An anonymous user will be rejected for the former but can access the latter.
Weakness: CWE-284
Which versions are affected by CVE-2016-9182?
It affects 1 product.
Products include Exponentcms Exponent Cms.
How do I fix CVE-2016-9182?
No fix has been published for CVE-2016-9182 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2016-9182 being exploited?
There is no known exploitation of CVE-2016-9182 in the wild and no public exploit code.
Other vulnerabilities in Exponentcms Exponent Cms
Sources
Also known as GHSA-wfgf-m8f7-j7qm.