ET WEB_SPECIFIC_APPS Array VPN fshare_template Arbitrary File Read

Query · suricata

flow:established,to_server;
http.header;
content:"x_an_fileshare|3a 20|"; nocase;
content:"fshare_template|3d|"; fast_pattern; distance:0;
pcre:"/^[^\x20\x0d\x0a]*?(?:(?:\x2e|%+(?:25)?2[Ee]|%+(?:25)?32%+(?:25)?[46]5){1,2}(?:\x2f|\x5c|%+(?:25)?(?:25)?5[Cc]|%+(?:25)?2[Ff]){1,}){2,}/R";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS Array VPN fshare_template Arbitrary File Read · 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 Array VPN fshare_template Arbitrary File Read";
    flow:established,to_server;
    http.header;
    content:"x_an_fileshare|3a 20|"; nocase;
    content:"fshare_template|3d|"; fast_pattern; distance:0;
    pcre:"/^[^\x20\x0d\x0a]*?(?:(?:\x2e|%+(?:25)?2[Ee]|%+(?:25)?32%+(?:25)?[46]5){1,2}(?:\x2f|\x5c|%+(?:25)?(?:25)?5[Cc]|%+(?:25)?2[Ff]){1,}){2,}/R";
    reference:url,github.com/MD-SEC/MDPOCS/blob/main/Array_VPN_FileRead_Poc.py;
    classtype:web-application-attack;
    sid:2069097; rev:1;
    metadata:attack_target Server, tls_state TLSDecrypt, created_at 2026_05_01, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_05_01, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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