Sandbox escape via quarantine-free devfs app bundle
Published Jul 27, 2023 · Updated Feb 13, 2025
Sandbox escape in AppSandbox in Apple macOS before 13.5 allows local users controlling a sandboxed process to bypass its restrictions. The process mounts devfs, which lacks quarantine extended attributes, constructs a crafted app bundle using a symlinked shell, and has launchd start it without sandboxing. Exploitation requires code already running inside App Sandbox and the ability to mount devfs; successful exploitation executes commands outside the original sandbox.
Summary
What happened
Sandbox escape in AppSandbox in Apple macOS before 13.5 allows local users controlling a sandboxed process to bypass its restrictions. The process mounts devfs, which lacks quarantine extended attributes, constructs a crafted app bundle using a symlinked shell, and has launchd start it without sandboxing. Exploitation requires code already running inside App Sandbox and the ability to mount devfs; successful exploitation executes commands outside the original sandbox.
The record
- CVE
- CVE-2023-32364
- Published
- Jul 27, 2023
- Updated
- Feb 13, 2025
- Vendor
- Apple
- Product
- macOS
- Classifications
- T1059.004
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Jul 27, 2023CVE publishedPublication date reported by the CVE source.
- Feb 13, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <13.5
- Affected versionversion=unspecified <13.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- CVE-2023-32364 macOS App Sandbox escape proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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