ET WEB_SPECIFIC_APPS Hikvision Authentication Bypass Attempt M1 (user/password enumeration) (CVE-2017-7921)
Sourceet/open
CreatedMarch 20, 2026
UpdatedMarch 20, 2026
Classificationattempted-admin
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Hikvision Authentication Bypass Attempt M1 (user/password enumeration) (CVE-2017-7921)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/Security/users|3f|auth|3d|YWRtaW4"; fast_pattern; reference:url,seclists.org/fulldisclosure/2017/Sep/23; reference:cve,2017-7921; classtype:attempted-admin; sid:2068369; rev:1; metadata:affected_product HikVision, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_03_20, cve CVE_2017_7921, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_03_20, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)
References
Metadata
affected productHikVision
attack targetNetworking_Equipment
tls stateplaintext
created at2026_03_20
deploymentInternal
performance impactLow
confidenceHigh
signature severityMajor
tagExploit
updated at2026_03_20
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application
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