ET INFO SonicWall SMA Multiple CIFS Server Bookmark Creation

Query · suricata

flow:established,to_server;
flowbits:set,ET.SW.Bookmark;
http.method;
content:"POST";
http.uri;
content:"/cgi-bin/editBookmark|3f|"; fast_pattern;
http.request_body;
content:"bmName|3d|";
pcre:"/^[^\x26]{64,}/R";
content:"service|3d|CIFS";
threshold:type threshold, seconds 30, count 5, track by_src;
target:dest_ip;

Rule dependencies

Feeds into

  • 1 rule read ET.SW.Bookmark · view all
Raw source ET INFO SonicWall SMA Multiple CIFS Server Bookmark Creation · 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 INFO SonicWall SMA Multiple CIFS Server Bookmark Creation";
    flow:established,to_server;
    flowbits:set,ET.SW.Bookmark;
    http.method;
    content:"POST";
    http.uri;
    content:"/cgi-bin/editBookmark|3f|"; fast_pattern;
    http.request_body;
    content:"bmName|3d|";
    pcre:"/^[^\x26]{64,}/R";
    content:"service|3d|CIFS";
    threshold:type threshold, seconds 30, count 5, track by_src;
    reference:url,www.nccgroup.com/us/research-blog/technical-advisory-sonicwall-sma-100-series-heap-based-buffer-overflow-cve-2021-20043/;
    classtype:misc-activity;
    sid:2061728; rev:2;
    metadata:affected_product SonicWall, attack_target Server, tls_state TLSDecrypt, created_at 2025_04_18, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Informational, updated_at 2026_01_20;
    target:dest_ip;
)

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