HP JetDirect J2552A/J2552B/J2591A/J3110A/J3111A/J3113A/J3263A/300.0 X Printer SNMP JetAdmin Device Password Disclosure Vulnerability
source: https://www.securityfocus.com/bid/7001/info
A problem with JetDirect printers could make it possible for a remote user to gain administrative access to the printer.
It has been reported that HP JetDirect printers leak the web JetAdmin device password under some circumstances. By sending an SNMP GET request to a vulnerable printer, the printer will return the hex-encoded device password to the requester. This could allow a remote user to access and change configuration of the printer.
C:\>snmputil get example.printer public .1.3.6.1.4.1.11.2.3.9.1.1.13.0