Sigma rule: CVE-2020-0688 Exploitation via Eventlog

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-024a87bc9c0f, updated 2022-12-25T00:00:00.000Z.

Rule

Title
CVE-2020-0688 Exploitation via Eventlog
Status
test
Level
high
Author
Florian Roth (Nextron Systems), wagga
Date
2020-02-29
Modified
2022-12-25
File
rules-emerging-threats/2020/Exploits/CVE-2020-0688/win_vul_cve_2020_0688.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the exploitation of Microsoft Exchange vulnerability as described in CVE-2020-0688

Log source

product
windows
service
application

Detection

selection1:
    EventID: 4
    Provider_Name: 'MSExchange Control Panel'
    Level: Error
selection2:
    - '&__VIEWSTATE='
condition: all of selection*

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.initial-access
  • attack.t1190
  • cve.2020-0688
  • 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/2020/Exploits/CVE-2020-0688/win_vul_cve_2020_0688.yml

Sources and licences

  • SigmaHQ

    "CVE-2020-0688 Exploitation via Eventlog" by Florian Roth (Nextron Systems), wagga (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2020/Exploits/CVE-2020-0688/win_vul_cve_2020_0688.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-2020-0688 Exploitation via Eventlog",
entity page, dataset version ref-024a87bc9c0f, updated 2022-12-25T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/d6266bf5-935e-4661-b477-78772735a7cb (accessed 2026-11-03).
Underlying source: SigmaHQ rule d6266bf5-935e-4661-b477-78772735a7cb, 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.