alert http any any -> $HOME_NET 8443 (msg:"ET WEB_SPECIFIC_APPS SonicWall SMA1000 Directory Traversal Attempt (CVE-2023-0126)"; flow:established,to_server; http.request_line; content:"GET /images/"; fast_pattern; startswith; pcre:"/^.{0,30}(?:(?:\x2e|%2[Ee]){1,2}(?:\x2f|\x5c|%5[Cc]|%2[Ff]){1,}){2,}/R"; reference:url,github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-0126.yaml; reference:cve,2023-0126; classtype:attempted-recon; sid:2056308; rev:2; metadata:affected_product SonicWall, created_at 2024_09_27, cve CVE_2023_0126, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1083, mitre_technique_name File_And_Directory_Discovery; target:dest_ip;)