ET WEB_SPECIFIC_APPS Possible DoubleQlik RCE via HTTP Request Tunneling with Malformed Transfer-Encoding (CVE-2023-41265)

Query · suricata

flow:established,to_server;
app-layer-event:http.invalid_transfer_encoding_value_in_request;
http.cookie;
content:"X-Qlik-Session="; fast_pattern;
Raw source ET WEB_SPECIFIC_APPS Possible DoubleQlik RCE via HTTP Request Tunneling with Malformed Transfer-Encoding (CVE-2023-41265) · Suricata
Esc
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_SPECIFIC_APPS Possible DoubleQlik RCE via HTTP Request Tunneling with Malformed Transfer-Encoding (CVE-2023-41265)";
    flow:established,to_server;
    app-layer-event:http.invalid_transfer_encoding_value_in_request;
    http.cookie;
    content:"X-Qlik-Session="; fast_pattern;
    reference:url,praetorian.com/blog/doubleqlik-bypassing-the-original-fix-for-cve-2023-41265/;
    reference:cve,2023-41265;
    classtype:web-application-attack;
    sid:2048367; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Qlik_Sense_Enterprise, attack_target Client_Endpoint, created_at 2023_09_29, cve CVE_2023_41265, deployment Perimeter, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_29, reviewed_at 2023_09_29;
)

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