alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT Stored XSS and Webpass IoT devices CVE-2021-31643"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/if.cgi?redirect=EmpRcd.htm"; content:"&username=|22 3e 3c|script|3e|alert|28|"; fast_pattern; content:"|29 3c 2f|script|3c|"; distance:0; reference:cve,2021-31643; reference:url,packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html; classtype:web-application-attack; sid:2033353; rev:2; metadata:attack_target Client_Endpoint, created_at 2021_07_16, cve CVE_2021_31643, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_16;)