ET EXPLOIT Apache2 Memory Corruption Inbound (CVE-2020-9490)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.header;
content:"Cache-Digest|3a 20|EA"; fast_pattern;
pcre:"/^(?:8=|9BQQ==)\r?\n?/R";
Raw source ET EXPLOIT Apache2 Memory Corruption Inbound (CVE-2020-9490) · 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 any any -> [$HTTP_SERVERS,$HOME_NET] any (
    msg:"ET EXPLOIT Apache2 Memory Corruption Inbound (CVE-2020-9490)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.header;
    content:"Cache-Digest|3a 20|EA"; fast_pattern;
    pcre:"/^(?:8=|9BQQ==)\r?\n?/R";
    reference:url,bugs.chromium.org/p/project-zero/issues/detail?id=2030&q=apache&can=1;
    reference:cve,2020-9490;
    classtype:attempted-admin;
    sid:2030830; rev:1;
    metadata:created_at 2020_09_03, cve CVE_2020_9490, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_03;
)

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