ET WEB_SPECIFIC_APPS Possible Ivanti Pulse Secure Authentication Bypass and Command Injection Attempt (CVE-2023-46805, CVE-2024-21887) M1

Query · suricata

flow:established,to_server;
http.request_line;
pcre:"/^(GE|POS)T/";
content:"/api/v1/totp/"; distance:0; fast_pattern;
content:"./"; distance:0;
content:"./"; distance:0;
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS Possible Ivanti Pulse Secure Authentication Bypass and Command Injection Attempt (CVE-2023-46805, CVE-2024-21887) M1 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Possible Ivanti Pulse Secure Authentication Bypass and Command Injection Attempt (CVE-2023-46805, CVE-2024-21887) M1";
    flow:established,to_server;
    http.request_line;
    pcre:"/^(GE|POS)T/";
    content:"/api/v1/totp/"; distance:0; fast_pattern;
    content:"./"; distance:0;
    content:"./"; distance:0;
    reference:url,attackerkb.com/topics/AdUh6by52K/cve-2023-46805/rapid7-analysis;
    reference:cve,2023-46805;
    reference:cve,2024-21887;
    classtype:trojan-activity;
    sid:2050131; rev:2;
    metadata:affected_product Pulse_Secure, created_at 2024_01_17, cve CVE_2023_46805_CVE_2024_21887, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, 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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