alert http any any -> $HOME_NET any (msg:"ET EXPLOIT Sophos Firewall Authentication Bypass (CVE-2022-1040)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/userportal/Controller?"; fast_pattern; startswith; content:"mode="; content:"operation="; content:"datagrid="; content:"json="; http.header; content:"X-Requested-With|3a 20|XMLHttpRequest"; http.header_names; content:!"Referer"; flowbits:set,ET.SophosAuthBypass; reference:cve,2022-1040; reference:url,attackerkb.com/topics/cdXl2NL3cR/cve-2022-1040; classtype:attempted-admin; sid:2036548; rev:2; 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, reviewed_at 2024_09_12, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)