ET WEB_SPECIFIC_APPS ConnectWise ScreenConnect - Successful User Creation via SetupWizard with Auth Bypass CWE-288 (CVE-2024-1709)

Query · suricata

flow:established,to_client;
flowbits:isset,ET.ScreenConnectAuthBypass.UserCreateAttempt;
http.stat_code;
content:"200";
http.server;
content:"ScreenConnect/"; startswith; fast_pattern;
target:src_ip;

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET WEB_SPECIFIC_APPS ConnectWise ScreenConnect - Successful User Creation via SetupWizard with Auth Bypass CWE-288 (CVE-2024-1709) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http [$HOME_NET,$HTTP_SERVERS] any -> $EXTERNAL_NET any (
    msg:"ET WEB_SPECIFIC_APPS ConnectWise ScreenConnect - Successful User Creation via SetupWizard with Auth Bypass CWE-288 (CVE-2024-1709)";
    flow:established,to_client;
    flowbits:isset,ET.ScreenConnectAuthBypass.UserCreateAttempt;
    http.stat_code;
    content:"200";
    http.server;
    content:"ScreenConnect/"; startswith; fast_pattern;
    reference:url,github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc/blob/main/watchtowr-vs-ConnectWise_2024-02-21.py;
    reference:url,www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8;
    reference:cve,2024-1709;
    classtype:successful-admin;
    sid:2050992; rev:1;
    metadata:attack_target Web_Server, tls_state TLSDecrypt, created_at 2024_02_21, cve CVE_2024_1709, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Critical, tag CISA_KEV, updated_at 2024_02_21, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:src_ip;
)

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