ET WEB_CLIENT Possible Chrome WebEx Extension RCE Attempt

Query · suricata

flow:to_server,established;
http.uri;
content:"cwcsf-nativemsg-iframe-43c85c0d-d633-af5e-c056-32dc7efc570b.html"; fast_pattern;
http.host;
content:!"webex.com";
Raw source ET WEB_CLIENT Possible Chrome WebEx Extension RCE 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET WEB_CLIENT Possible Chrome WebEx Extension RCE Attempt";
    flow:to_server,established;
    http.uri;
    content:"cwcsf-nativemsg-iframe-43c85c0d-d633-af5e-c056-32dc7efc570b.html"; fast_pattern;
    http.host;
    content:!"webex.com";
    reference:url,bugs.chromium.org/p/project-zero/issues/detail?id=1096;
    classtype:attempted-user;
    sid:2023756; rev:5;
    metadata:affected_product Google_Chrome, attack_target Client_Endpoint, created_at 2017_01_24, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2024_02_15;
)

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