Sigma rule: CVE-2021-21978 Exploitation Attempt

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-259d5631968f, updated 2023-01-02T00:00:00.000Z.

Rule

Title
CVE-2021-21978 Exploitation Attempt
Status
test
Level
high
Author
Bhabesh Raj
Date
2020-03-10
Modified
2023-01-02
File
rules-emerging-threats/2021/Exploits/CVE-2021-21978/web_cve_2021_21978_vmware_view_planner_exploit.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the exploitation of the VMware View Planner vulnerability described in CVE-2021-21978

Log source

category
webserver

Detection

selection:
    cs-method: 'POST'
    cs-uri-query|contains|all:
        - 'logupload'
        - 'logMetaData'
        - 'wsgi_log_upload.py'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.initial-access
  • attack.t1190
  • cve.2021-21978
  • 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-2021-21978/web_cve_2021_21978_vmware_view_planner_exploit.yml

Sources and licences

  • SigmaHQ

    "CVE-2021-21978 Exploitation Attempt" by Bhabesh Raj (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2021/Exploits/CVE-2021-21978/web_cve_2021_21978_vmware_view_planner_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: CVE-2021-21978 Exploitation Attempt",
entity page, dataset version ref-259d5631968f, updated 2023-01-02T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/77586a7f-7ea4-4c41-b19c-820140b84ca9 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 77586a7f-7ea4-4c41-b19c-820140b84ca9, 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.