CVE-2004-0051
HighSummary
Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use non-standard but frequently supported Content-Transfer-Encoding values such as uuencode, mac-binhex40, and yenc.
Risk Assessment
Attackers may exploit this vulnerability to send malicious content that may be interpreted differently by mail clients, posing a security risk to the organization.
Recommendation
It is recommended to update security products and configure them to block non-standard Content-Transfer-Encoding values.
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Original NVD description (English source)
Multiple content security gateway and antivirus products allow remote attackers to bypass content restrictions via MIME messages that use non-standard but frequently supported Content-Transfer-Encoding values such as (1) uuencode, (2) mac-binhex40, and (3) yenc, which may be interpreted differently by mail clients.