ET WEB_SPECIFIC_APPS Apache SkyWalking GraphQL SQL Injection Inbound (CVE-2020-13921)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/graphql"; fast_pattern;
http.request_body;
content:"|7b 22|query"; nocase; startswith;
content:"|27 29|";
pcre:"/^\s?.{0,100}(?:SELECT|UNION|CHAR|LONGVARCHAR|SCHEMA|FROM|WHERE|IFNULL|INSERT|UPDATE)/R";
Raw source ET WEB_SPECIFIC_APPS Apache SkyWalking GraphQL SQL Injection Inbound (CVE-2020-13921) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET WEB_SPECIFIC_APPS Apache SkyWalking GraphQL SQL Injection Inbound (CVE-2020-13921)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/graphql"; fast_pattern;
    http.request_body;
    content:"|7b 22|query"; nocase; startswith;
    content:"|27 29|";
    pcre:"/^\s?.{0,100}(?:SELECT|UNION|CHAR|LONGVARCHAR|SCHEMA|FROM|WHERE|IFNULL|INSERT|UPDATE)/R";
    reference:url,blog.csdn.net/caiqiiqi/article/details/107857173;
    reference:cve,2020-13921;
    classtype:attempted-admin;
    sid:2033403; rev:2;
    metadata:created_at 2021_07_24, cve CVE_2020_13921, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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