ET WEB_CLIENT Possible Adobe Reader and Acrobat Forms Data Format Remote Security Bypass Attempt

Query · suricata

flow:established,to_client;
content:"|0d 0a|%FDF-"; depth:600;
content:"/F(JavaScript|3a|"; nocase; distance:0;
Raw source ET WEB_CLIENT Possible Adobe Reader and Acrobat Forms Data Format Remote Security Bypass Attempt · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_CLIENT Possible Adobe Reader and Acrobat Forms Data Format Remote Security Bypass Attempt";
    flow:established,to_client;
    content:"|0d 0a|%FDF-"; depth:600;
    content:"/F(JavaScript|3a|"; nocase; distance:0;
    reference:url,www.securityfocus.com/bid/37763;
    reference:cve,2009-3956;
    reference:url,www.stratsec.net/files/SS-2010-001_Stratsec_Acrobat_Script_Injection_Security_Advisory_v1.0.pdf;
    classtype:attempted-user;
    sid:2010664; rev:6;
    metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_07_30, cve CVE_2009_3956, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_09_27;
)

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