ET WEB_SPECIFIC_APPS Rapid7 Velociraptor Authenticated Account Takeover via Identity Spoofing (CVE-2026-18972)
Sourceet/open
Fileemerging-web_specific_apps.rules
CreatedAugust 11, 2026
UpdatedAugust 11, 2026
Classificationattempted-user
alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Rapid7 Velociraptor Authenticated Account Takeover via Identity Spoofing (CVE-2026-18972)"; flow:established,to_server ; http.header_names; content:"grpc-metadata-user|0d 0a|"; nocase; reference:url,vuldb.com/vuln/388113 ; reference:cve,2026-18972 ; classtype:attempted-user; sid:2071437; rev:1; metadata:affected_product Rapid7_Velociraptor, attack_target Server, tls_state TLSDecrypt, created_at 2026_08_11, cve CVE_2026_18972, deployment Perimeter, deployment Internal, confidence Low, signature_severity Major, tag Exploit, updated_at 2026_08_11, 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 productRapid7_Velociraptor
attack targetServer
tls stateTLSDecrypt
created at2026_08_11
deploymentInternal
confidenceLow
signature severityMajor
tagExploit
updated at2026_08_11
mitre tactic idTA0001
mitre tactic nameInitial_Access
mitre technique idT1190
mitre technique nameExploit_Public_Facing_Application
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