SERVER-MAIL -- Snort has detected traffic exploiting vulnerabilities in mail servers (such as Exchange, Courrier). These are different from protocol traffic, as this deals with the traffic going to the mail server itself.
SERVER-MAIL Multiple products non-ascii sender address spoofing attempt
This event is generated when an attacker attempts to spoof their FROM mail address.
Rule checks for an attempt to spoof their FROM email address using non-ASCII encoded values.
Ease of Attack:
What To Look For
No public information
No known false positives
Cisco Talos Intelligence Group
MITRE ATT&CK Framework
For reference, see the MITRE ATT&CK vulnerability types here:
CVE Additional Information
CVE-2018-0819Microsoft Office 2016 for Mac allows an attacker to send a specially crafted email attachment to a user in an attempt to launch a social engineering attack, such as phishing, due to how Outlook for Mac displays encoded email addresses, aka "Spoofing Vulnerability in Microsoft Office for Mac."
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