Rule History

SID: 2034974 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 2 • Jan 25, 2022, 12:00 PM

Message:

ET EXPLOIT Possible vRealize Operations Manager API SSRF Attempt (CVE-2021-21975)

Rule:

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Possible vRealize Operations Manager API SSRF Attempt (CVE-2021-21975)"; flow:established,to_server; http.request_line; content:"POST /casa/nodes/thumbprints HTTP/1.1"; fast_pattern; http.request_body; content:"|5b|"; http.content_type; content:"application/json|3b|charset=UTF-8"; bsize:30; reference:cve,2021-21975; classtype:attempted-admin; sid:2034974; rev:2; metadata:attack_target Server, created_at 2022_01_25, cve CVE_2021_21975, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_25;)

Created:

Jan 25, 2022, 12:00 PM

Updated:

Jan 25, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 8, 2025, 9:34 PM

Filename:

rules/emerging-exploit.rules