Cerberus Information Security Advisory (CISADV000524a) - The Cerberus Security Team has discovered a serious security flaw with Rockliffe's MailSite Management Agent for Windows (version 4.2.1.0). This server allows remote users to access their POP3 accounts and read their mail over HTTP. The service usually listens on TCP port 90. Unfortunately there exists a buffer overrun vulnerability that allows attackers to execute arbitrary code. As this service runs as system, by default, any code executed will run with system privileges - meaning any server running this agent could be fully compromised.
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