Local privilege escalation via unchecked pidfile path
Published Apr 27, 2023 · Updated Jan 31, 2025
Incorrect authorization in Docker Desktop for Windows before 4.6.0 allows local users to create or delete arbitrary host files. The windowscontainers/start API accepts an attacker-controlled pidfile path inside DaemonJSON and passes it to privileged dockerd, which creates the file and deletes it when the service stops. Access to the local Docker backend in Windows Containers mode is required; junction redirection can convert the deletion primitive into SYSTEM privilege escalation.
Summary
What happened
Incorrect authorization in Docker Desktop for Windows before 4.6.0 allows local users to create or delete arbitrary host files. The windowscontainers/start API accepts an attacker-controlled pidfile path inside DaemonJSON and passes it to privileged dockerd, which creates the file and deletes it when the service stops. Access to the local Docker backend in Windows Containers mode is required; junction redirection can convert the deletion primitive into SYSTEM privilege escalation.
The record
- CVE
- CVE-2022-37326
- Published
- Apr 27, 2023
- Updated
- Jan 31, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-863, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 27, 2023CVE publishedPublication date reported by the CVE source.
- Jan 31, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- CyberArk pidfile privilege-escalation proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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