Sigma rule: Potential CVE-2022-22954 Exploitation Attempt - VMware Workspace ONE Access Remote Code Execution

Rule

Title

Potential CVE-2022-22954 Exploitation Attempt - VMware Workspace ONE Access Remote Code Execution

Status

test

Level

medium

Author

@kostastsale

Date

2022-04-25

File

rules-emerging-threats/2022/Exploits/CVE-2022-22954/proc_creation_win_exploit_cve_2022_22954_vmware_workspace_one_rce.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential exploitation attempt of CVE-2022-22954, a remote code execution vulnerability in VMware Workspace ONE Access and Identity Manager.
As reported by Morphisec, part of the attack chain, threat actors used PowerShell commands that executed as a child processes of the legitimate Tomcat "prunsrv.exe" process application.

Log source

product

windows

category

process_creation

Detection

selection_parent:
    ParentImage|endswith: '\prunsrv.exe'
selection_payload_pwsh:
    Image|endswith: '\powershell.exe'
selection_payload_cmd:
    Image|endswith: '\cmd.exe'
    CommandLine|contains: '/c powershell'
condition: selection_parent and 1 of selection_payload_*

False positives (as the rule lists them)

• Some false positives are possible as part of a custom script implementation from admins executed with cmd.exe as the child process.

Tags

• attack.execution
• attack.initial-access
• attack.t1059.006
• attack.t1190
• cve.2022-22954
• detection.emerging-threats

CVEs this rule names

• CVE-2022-22954

MITRE ATT&CK ids this rule names

• T1059.006
• T1190

References

• https://blog.morphisec.com/vmware-identity-manager-attack-backdoor
• https://github.com/DrorDvash/CVE-2022-22954_VMware_PoC

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/2022/Exploits/CVE-2022-22954/proc_creation_win_exploit_cve_2022_22954_vmware_workspace_one_rce.yml