ET EXPLOIT Sophos Firewall Authentication Bypass (CVE-2022-1040) Server Response M1

Query · suricata

flow:established,to_client;
flowbits:isset,ET.SophosAuthBypass;
file.data;
content:"{|22|status|22 3a 22|Session Expired|22|}"; fast_pattern;
target:dest_ip;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET EXPLOIT Sophos Firewall Authentication Bypass (CVE-2022-1040) Server Response M1 · 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 -> any any (
    msg:"ET EXPLOIT Sophos Firewall Authentication Bypass (CVE-2022-1040) Server Response M1";
    flow:established,to_client;
    flowbits:isset,ET.SophosAuthBypass;
    file.data;
    content:"{|22|status|22 3a 22|Session Expired|22|}"; fast_pattern;
    reference:cve,2022-1040;
    reference:url,attackerkb.com/topics/cdXl2NL3cR/cve-2022-1040;
    classtype:attempted-admin;
    sid:2036549; rev:3;
    metadata:created_at 2022_05_09, cve CVE_2022_1040, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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