ET WEB_SPECIFIC_APPS LG Simple Editor Malicious JSP Disguised as BMP Upload Attempt (CVE-2023-40498)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/simpleeditor/imageManager/uploadImage.do"; fast_pattern;
http.request_body;
content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|uploadFile|22 3b 20|filename|3d 22|";
content:".bmp|22 0d 0a|"; distance:0; within:40;
content:"Content-Type|3a 20|image/bmp|0d 0a|Content-Transfer-Encoding|3a 20|binary|0d 0a 0d 0a|"; distance:0; within:150;
content:"|3c 25 40|page import|3d 22|java.io."; distance:0; within:60;
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS LG Simple Editor Malicious JSP Disguised as BMP Upload Attempt (CVE-2023-40498) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS LG Simple Editor Malicious JSP Disguised as BMP Upload Attempt (CVE-2023-40498)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/simpleeditor/imageManager/uploadImage.do"; fast_pattern;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22|uploadFile|22 3b 20|filename|3d 22|";
    content:".bmp|22 0d 0a|"; distance:0; within:40;
    content:"Content-Type|3a 20|image/bmp|0d 0a|Content-Transfer-Encoding|3a 20|binary|0d 0a 0d 0a|"; distance:0; within:150;
    content:"|3c 25 40|page import|3d 22|java.io."; distance:0; within:60;
    reference:url,attackerkb.com/topics/qB3G1ymgSh/cve-2023-40498;
    reference:cve,2023-40498;
    classtype:attempted-admin;
    sid:2049212; rev:2;
    metadata:attack_target Web_Server, created_at 2023_11_15, cve CVE_2023_40498, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_11_16, reviewed_at 2024_10_02;
    target:dest_ip;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.