Microsoft Windows NT 4.0 / 2000 SNMP Registry Key Modification Vulnerability

The SNMP protocol in Windows NT4 and 2000 enables an administrator to manage network devices remotely.

The SNMP parameters key in the registry stores community name and management station identifiers. Unfortunately this information is readable by all users, allowing malicious users to pose as a management station for any communities belonged to. The key settings are typically modified by a user with administrative privileges, due to a default configuration error the SNMP Registry Key permits any user, that is logged into that particular machine, to edit the settings. By editing the parameters key, a user could in theory create a new community with management privileges for themselves.

Successful exploitation of this vulnerability could allow a user to gain full control of network devices and other resources managed via SNMP.


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