ET EXPLOIT SysAid Traversal Attack (CVE-2023-47246)

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET EXPLOIT SysAid Traversal Attack (CVE-2023-47246)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/userentry?accountId="; nocase; fast_pattern;
    pcre:"/^[^&]+\x2e(?:\x2e|\x2f)/Ri";
    http.request_body;
    content:"|78 9c|"; startswith;
    reference:url,www.huntress.com/blog/critical-vulnerability-sysaid-cve-2023-47246;
    reference:url,profero.io/posts/sysaidonpremvulnerability/;
    reference:url,swww.sysaid.com/blog/service-desk/on-premise-software-security-vulnerability-notification;
    reference:cve,2023-47246;
    classtype:attempted-admin;
    sid:2049295; rev:1;
    metadata:attack_target Web_Server, created_at 2023_11_27, cve CVE_2023_47246, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_29;
    target:dest_ip;
)