ET WEB_SPECIFIC_APPS ConnectWise ScreenConnect - Attempted User Creation via SetupWizard with Auth Bypass CWE-288 (CVE-2024-1709) - Suricata Rule 2050991 (et/open)

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

SID: 2050991Rev: 141 viewsHistory

Sourceet/open

CreatedFebruary 21, 2024

UpdatedFebruary 21, 2024

Classificationattempted-admin

alert http $EXTERNAL_NET any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS ConnectWise ScreenConnect - Attempted User Creation via SetupWizard with Auth Bypass CWE-288 (CVE-2024-1709)"; flow:established,to_server; flowbits:set,ET.ScreenConnectAuthBypass.UserCreateAttempt; http.method; content:"POST"; http.uri; content:"/SetupWizard.aspx/"; startswith; http.request_body; content:"userNameBox|3d|"; content:"emailBox|3d|"; content:"passwordBox|3d|"; 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:attempted-admin; sid:2050991; 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 Major, 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:dest_ip;)

References

url	github.com/watchtowrlabs/connectwise-screenconnect_auth-bypass-add-user-poc/blob/main/watchtowr-vs-ConnectWise_2024-02-21.py
url	www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
cve	2024-1709

Metadata

attack targetWeb_Server

tls stateTLSDecrypt

created at2024_02_21

cveCVE-2024-1709

deploymentSSLDecrypt

performance impactLow

confidenceHigh

signature severityMajor

tagCISA_KEV

updated at2024_02_21

mitre tactic idTA0001

mitre tactic nameInitial_Access

mitre technique idT1190

mitre technique nameExploit_Public_Facing_Application

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