TCC bypass via unhardened dylib injection
Published Jan 8, 2025 · Updated Jan 8, 2025
Code injection in the TCC handler of Kingsoft WPS Office 6.14.0 for macOS allows local users to access TCC-protected resources. The app is signed without Hardened Runtime, so DYLD_INSERT_LIBRARIES loads an attacker-controlled dylib into its process with inherited permissions. Local low-privilege access is required; exploitation exposes only resources already granted to WPS, including protected files, camera, and microphone.
Summary
What happened
Code injection in the TCC handler of Kingsoft WPS Office 6.14.0 for macOS allows local users to access TCC-protected resources. The app is signed without Hardened Runtime, so DYLD_INSERT_LIBRARIES loads an attacker-controlled dylib into its process with inherited permissions. Local low-privilege access is required; exploitation exposes only resources already granted to WPS, including protected files, camera, and microphone.
The record
- CVE
- CVE-2024-13187
- Published
- Jan 8, 2025
- Updated
- Jan 8, 2025
- Vendor
- Kingsoft Office Software
- Product
- WPS Office
- Classifications
- CWE-94, CWE-74, T1055
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 8, 2025CVE publishedPublication date reported by the CVE source.
- Jan 8, 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=6.14.0
What conditions does exploitation require?
What is affected?
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
- WPS TCC Bypass via DYLD_INSERT_LIBRARY Injectionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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