ET EXPLOIT Cisco ASA XSS Attempt (CVE-2020-3580)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/+CSCOE+/saml/sp/acs?tgname="; fast_pattern;
http.request_body;
content:"=|22|><";
Raw source ET EXPLOIT Cisco ASA XSS Attempt (CVE-2020-3580) · 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 EXPLOIT Cisco ASA XSS Attempt (CVE-2020-3580)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/+CSCOE+/saml/sp/acs?tgname="; fast_pattern;
    http.request_body;
    content:"=|22|><";
    reference:url,twitter.com/ptswarm/status/1408050644460650502;
    reference:cve,2020-3580;
    classtype:web-application-attack;
    sid:2033994; rev:2;
    metadata:affected_product Web_Server_Applications, attack_target Networking_Equipment, created_at 2021_09_21, cve CVE_2020_3580, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_21;
)

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