Possible Oracle Opera CGI Webshell Command Execution via operabin
- Category
- webserver
- Author
- HuntRule
- Published
- 2026-09-07
- Updated
- 2026-09-07
ATT&CK techniques
Initial Access → PersistenceRecon
Resource Dev
Initial Access
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects HTTP requests to CGI scripts under the Oracle Opera /operabin/ path that pass a cmd parameter. Following a FileReceiver webshell drop described by Assetnote, attackers invoke the planted CGI script with a cmd argument to run operating system commands on the Opera host.
Reporting behind it
- assetnote.iohttps://www.assetnote.io/resources/research/exploiting-an-order-of-operations-bug-to-achieve-rce-in-oracle-opera
- attack.mitre.orghttps://attack.mitre.org/techniques/T1190/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1059/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1505/003/
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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