Sigma rule: Oracle WebLogic Exploit CVE-2021-2109

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-0fc015e76e2a, updated 2023-01-02T00:00:00.000Z.

Rule

Title
Oracle WebLogic Exploit CVE-2021-2109
Status
test
Level
critical
Author
Bhabesh Raj
Date
2021-01-20
Modified
2023-01-02
File
rules-emerging-threats/2021/Exploits/CVE-2021-2109/web_cve_2021_2109_weblogic_rce_exploit.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the exploitation of the WebLogic server vulnerability described in CVE-2021-2109

Log source

category
webserver

Detection

selection:
    cs-method: 'GET'
    cs-uri-query|contains|all:
        - 'com.bea.console.handles.JndiBindingHandle'
        - 'ldap://'
        - 'AdminServer'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.t1190
  • attack.initial-access
  • cve.2021-2109
  • detection.emerging-threats

CVEs this rule names

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2021/Exploits/CVE-2021-2109/web_cve_2021_2109_weblogic_rce_exploit.yml

Sources and licences

  • SigmaHQ

    "Oracle WebLogic Exploit CVE-2021-2109" by Bhabesh Raj (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2021/Exploits/CVE-2021-2109/web_cve_2021_2109_weblogic_rce_exploit.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Oracle WebLogic Exploit CVE-2021-2109",
entity page, dataset version ref-0fc015e76e2a, updated 2023-01-02T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/687f6504-7f44-4549-91fc-f07bab065821 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 687f6504-7f44-4549-91fc-f07bab065821, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.