ET EXPLOIT ownCloud Remote Improper Authentication Attempt (CVE-2023-49105)

Query · suricata

flow:established,to_server;
flowbits:set,ET.CVE-2023-49105.request;
http.method;
content:!"OPTIONS";
http.uri;
content:"/remote.php/dav"; fast_pattern;
content:"OC-Credential="; nocase;
content:"OC-Verb="; nocase;
content:"OC-Expires="; nocase;
content:"OC-Date="; nocase;
content:"OC-Signature="; nocase;
pcre:"/^[a-f0-9]{64}(?:&|$)/R";
threshold:type limit, count 1, seconds 600, track by_src;

Rule dependencies

Feeds into

  • 1 rule read ET.CVE-2023-49105.request · view all
Raw source ET EXPLOIT ownCloud Remote Improper Authentication Attempt (CVE-2023-49105) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT ownCloud Remote Improper Authentication Attempt (CVE-2023-49105)";
    flow:established,to_server;
    flowbits:set,ET.CVE-2023-49105.request;
    http.method;
    content:!"OPTIONS";
    http.uri;
    content:"/remote.php/dav"; fast_pattern;
    content:"OC-Credential="; nocase;
    content:"OC-Verb="; nocase;
    content:"OC-Expires="; nocase;
    content:"OC-Date="; nocase;
    content:"OC-Signature="; nocase;
    pcre:"/^[a-f0-9]{64}(?:&|$)/R";
    threshold:type limit, count 1, seconds 600, track by_src;
    reference:url,www.ambionics.io/blog/owncloud-cve-2023-49103-cve-2023-49105;
    reference:cve,2023-49105;
    classtype:attempted-admin;
    sid:2049617; rev:2;
    metadata:attack_target Server, created_at 2023_12_07, cve CVE_2023_49105, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Exploit, updated_at 2024_06_23, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
)

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