This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system.
PaperCut has issued an update to correct this vulnerability. More details can be found at:
|Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative