ET INFO Suspicious POST to Axis OS (smtptest.cgi)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/axis-cgi/smtptest.cgi"; fast_pattern;
Raw source ET INFO Suspicious POST to Axis OS (smtptest.cgi) · 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 -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET INFO Suspicious POST to Axis OS (smtptest.cgi)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/axis-cgi/smtptest.cgi"; fast_pattern;
    reference:url,nozominetworks.com/blog/new-axis-os-security-research-aided-by-transparent-design/;
    reference:cve,2021-31986;
    classtype:bad-unknown;
    sid:2034130; rev:2;
    metadata:attack_target Server, created_at 2021_10_06, cve CVE_2021_31986, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_24;
)

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