CVE-2016-9182

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://www.securityfocus.com/bid/94227
• https://github.com/exponentcms/exponent-cms/commit/684d79424f768db8bb345d5c68aa2a886239492b

References

• http://www.securityfocus.com/bid/94227
• https://github.com/exponentcms/exponent-cms/commit/684d79424f768db8bb345d5c68aa2a886239492b

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