[Snort-sigs] Microsoft Vulnerability CVE-2018-0950

Achiad Gelerenter achiadg at post.bgu.ac.il
Sun Apr 15 07:20:14 EDT 2018

i try to understand the SNORT rule for this cve:


# alert tcp $EXTERNAL_NET any -> $SMTP_SERVERS 25 ( msg:"FILE-OTHER
Microsoft Office Outlook 2003 OLE information disclosure attempt detected";
flow:to_server,established; file_data; content:"|78 9F 3E 22|",depth 4;
content:"Package"; content:"|5C 5C|",within 100;
content:"METAFILE",distance 0; metadata:policy max-detect-ips drop,policy
security-ips drop; service:smtp; reference:cve,2018-0950;
2018-0950; classtype:policy-violation; sid:46266; rev:1; )

Why did you mean by  content:"Package", and by  content:"METAFILE"?

why this appears in the SNORT rule? this is necessary?
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