ET WEB_SPECIFIC_APPS Atlassian Confluence CVE-2023-22518 Vulnerable Server Detected Version 7.x M2

Query · suricata

flow:established,to_client;
http.response_body;
content:"|3c|li|20|class|3d 22|print|2d|only|22 3e|Printed|20|by|20|Atlassian|20|Confluence|20|7|2e|"; fast_pattern;
pcre:"/^(?:1(?:9(?:\.(?:[023456789]|1[012345]?))?|3(?:\.(?:[03456789]|1\d?|20?))?|1(?:\.[0123456])?|2(?:\.[012345])?|6(?:\.[012345])?|7(?:\.[012345])?|4(?:\.[01234])?|5(?:\.[0123])?|8(?:\.[0123])?|0(?:\.[012])?|\.[012])?|4(?:\.(?:[023456789]|1[012345678]?))?|2(?:0(?:\.[0123])?|\.[012])?|0(?:\.[012345])?|3(?:\.[012345])?|7(?:\.[01234])?|8(?:\.[0123])?|9(?:\.[0123])?|5(?:\.[012])?|6(?:\.[012])?)\x3c/R";
threshold:type limit, count 1, seconds 3600, track by_src;
target:src_ip;
Raw source ET WEB_SPECIFIC_APPS Atlassian Confluence CVE-2023-22518 Vulnerable Server Detected Version 7.x M2 · 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 [$HOME_NET,$HTTP_SERVERS] any -> any any (
    msg:"ET WEB_SPECIFIC_APPS Atlassian Confluence CVE-2023-22518 Vulnerable Server Detected Version 7.x M2";
    flow:established,to_client;
    http.response_body;
    content:"|3c|li|20|class|3d 22|print|2d|only|22 3e|Printed|20|by|20|Atlassian|20|Confluence|20|7|2e|"; fast_pattern;
    pcre:"/^(?:1(?:9(?:\.(?:[023456789]|1[012345]?))?|3(?:\.(?:[03456789]|1\d?|20?))?|1(?:\.[0123456])?|2(?:\.[012345])?|6(?:\.[012345])?|7(?:\.[012345])?|4(?:\.[01234])?|5(?:\.[0123])?|8(?:\.[0123])?|0(?:\.[012])?|\.[012])?|4(?:\.(?:[023456789]|1[012345678]?))?|2(?:0(?:\.[0123])?|\.[012])?|0(?:\.[012345])?|3(?:\.[012345])?|7(?:\.[01234])?|8(?:\.[0123])?|9(?:\.[0123])?|5(?:\.[012])?|6(?:\.[012])?)\x3c/R";
    threshold:type limit, count 1, seconds 3600, track by_src;
    reference:url,confluence.atlassian.com/security/cve-2023-22518-improper-authorization-vulnerability-in-confluence-data-center-and-server-1311473907.html;
    reference:cve,2023-22518;
    classtype:web-application-activity;
    sid:2049085; rev:1;
    metadata:affected_product Atlassian_Confluence, attack_target Web_Server, created_at 2023_11_06, cve CVE_2023_22518, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_06;
    target:src_ip;
)

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