Rule History

SID: 2029206 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 5 • Dec 30, 2019, 12:00 PM

Message:

ET EXPLOIT Possible Citrix Application Delivery Controller Arbitrary Code Execution Attempt (CVE-2019-19781)

Rule:

alert http any any -> $HTTP_SERVERS any (msg:"ET EXPLOIT Possible Citrix Application Delivery Controller Arbitrary Code Execution Attempt (CVE-2019-19781)"; flow:established,to_server; http.uri; content:"/vpns/"; nocase; fast_pattern; http.uri.raw; content:"/../"; reference:url,support.citrix.com/article/CTX267679; reference:cve,2019-19781; classtype:attempted-admin; sid:2029206; rev:5; metadata:attack_target Server, created_at 2019_12_30, cve CVE_2019_19781, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2022_02_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)

Created:

Dec 30, 2019, 12:00 PM

Updated:

Feb 5, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-exploit.rules