Rule History

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS MOVEit File Transfer - Set Session Variables - Guest Account Creation - CVE-2023-34362 Stage 1a"; flow:established,to_server; http.uri; content:"/moveitisapi/moveitisapi.dll?action=m2"; fast_pattern; http.header; content:"X-siLock-Transaction|3a 20|"; nocase; content:"folder_add_by_path"; within:18; content:"X-siLock-Transaction|3a 20|"; nocase; content:"session_setvars"; within:15; content:"X-siLock-SessVar"; nocase; content:"MyUsername|3a 20|Guest"; within:25; http.header_names; content:"|0d 0a|X-siLock-SessVar"; nocase; reference:url,www.horizon3.ai/moveit-transfer-cve-2023-34362-deep-dive-and-indicators-of-compromise/; reference:url,attackerkb.com/topics/mXmV0YpC3W/cve-2023-34362/rapid7-analysis; reference:cve,2023-34362; classtype:attempted-admin; sid:2046188; rev:1; metadata:attack_target Web_Server, created_at 2023_06_12, cve CVE_2023_34362, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, updated_at 2023_06_13; target:dest_ip;)