#alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY [Fidelis] Abnormal Very Long x509v3 SubjectKeyIdentifier? Extension"; flow:established,from_server; dsize:>768; content:"|16 03|"; depth:2; content:"|06 03 55 1d 0e 04|"; offset:336; pcre:"/^[\x80-\xff]/R"; threshold: type limit, track by_src, seconds 30, count 1; metadata: former_category POLICY; reference:url,www.fidelissecurity.com/threatgeek/2018/02/exposing-x509-vulnerabilities; classtype:misc-attack; sid:2025320; rev:2; metadata:attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_02_06, updated_at 2018_02_07;)

Added 2018-09-13 19:54:32 UTC


Added 2018-09-13 18:02:03 UTC


#alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY [Fidelis] Abnormal Very Long x509v3 SubjectKeyIdentifier? Extension"; flow:established,from_server; dsize:>768; content:"|16 03|"; depth:2; content:"|06 03 55 1d 0e 04|"; offset:336; pcre:"/^[\x80-\xff]/R"; threshold: type limit, track by_src, seconds 30, count 1; metadata: former_category POLICY; reference:url,www.fidelissecurity.com/threatgeek/2018/02/exposing-x509-vulnerabilities; classtype:misc-attack; sid:2025320; rev:2; metadata:attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_02_06, updated_at 2018_02_07;)

Added 2018-02-07 18:31:07 UTC


alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY [Fidelis] Abnormal Very Long x509v3 SubjectKeyIdentifier? Extension"; flow:established,from_server; dsize:>768; content:"|16 03|"; depth:2; content:"|06 03 55 1d 0e 04|"; offset:336; pcre:"/^[\x80-\xff]/R"; threshold: type limit, track by_src, seconds 30, count 1; metadata: former_category POLICY; reference:url,www.fidelissecurity.com/threatgeek/2018/02/exposing-x509-vulnerabilities; classtype:misc-attack; sid:2025320; rev:2; metadata:attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_02_06, updated_at 2018_02_07;)

Added 2018-02-07 18:13:57 UTC


#alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET POLICY [Fidelis] Abnormal Very Long x509v3 SubjectKeyIdentifier? Extension"; flow:established,from_server; dsize:>768; content:"|16 03|"; depth:2; content:"|06 03 55 1d 0e 04|"; offset:336; pcre:"/^[\x80-\xff]/R"; threshold: type limit, track by_src, seconds 30, count 1; metadata: former_category POLICY; reference:url,www.fidelissecurity.com/threatgeek/2018/02/exposing-x509-vulnerabilities; classtype:misc-attack; sid:2025320; rev:1; metadata:attack_target Client_Endpoint, deployment Perimeter, signature_severity Major, created_at 2018_02_06, updated_at 2018_02_06;)

Added 2018-02-06 17:26:15 UTC


Topic revision: r1 - 2018-09-13 - TWikiGuest
 
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