Rule History

SID: 2032962 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 1 • May 17, 2021, 12:00 PM

Message:

ET EXPLOIT Windows HTTP Protocol Stack UAF/RCE (CVE-2021-31166), http.sys DOS (CVE-2022-21907) Inbound

Rule:

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Windows HTTP Protocol Stack UAF/RCE (CVE-2021-31166), http.sys DOS (CVE-2022-21907) Inbound"; flow:established,to_server; http.accept_enc; content:",|20|,"; fast_pattern; reference:url,github.com/0vercl0k/CVE-2021-31166; reference:cve,2021-31166; classtype:attempted-admin; sid:2032962; rev:1; metadata:attack_target Server, created_at 2021_05_17, cve CVE_2021_31166, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2021_05_17, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)

Created:

May 17, 2021, 12:00 PM

Updated:

May 17, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 21, 2024, 3:00 AM

Filename:

rules/emerging-exploit.rules