alert http any any -> $HOME_NET any (
msg:"ET WEB_SPECIFIC_APPS Cisco Smart Licensing Utility API Hardcoded Admin Credentials (CVE-2024-20439)";
flow:established,to_server;
http.uri;
content:"/cslu/"; startswith;
http.header;
content:"Authorization|3a 20|Basic|20|Y3NsdS13aW5kb3dzLWNsaWVudDpMaWJyYXJ5NEMkTFU="; fast_pattern;
reference:url,github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-20439.yaml;
reference:cve,2024-20439;
classtype:attempted-admin;
sid:2056147; rev:1;
metadata:affected_product Cisco_Smart_Licensing, attack_target Server, tls_state TLSDecrypt, created_at 2024_09_24, cve CVE_2024_20439, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_09_24, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1078, mitre_technique_name Valid_Accounts;
)