Lotus Notes/Domino SMTP Server Percent Encapsulated Spam Relay
Description
Lotus Notes SMTP MTA is susceptible to being used as a mail relay for SPAM or other unsolicited email. By connecting to the mail server (tcp25) and issuing a 'MAIL FROM' command with <> as the argument, then issuing a specially encapsulated RCPT TO, an unauthorized user can relay email via this server.
An encapsulated address looks like this: encapsulatedaddress@yourdomain.com
where yourdomain.com is the domain of the vulnerable mail server, and encapsulatedaddress is the encoded destination email address. The encoding scheme is as follows: replace "@" with "%".
Solution(s)
- smtp-domino-0002
- Lightweight Endpoint Agent
- Live Dashboards
- Real Risk Prioritization
- IT-Integrated Remediation Projects
- Cloud, Virtual, and Container Assessment
- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
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– Scott Cheney, Manager of Information Security, Sierra View Medical Center