CVE-2025-4412
TCC Bypass via Dylib Loading in Viscosity.app
- State
- Published
- Severity
- 4.8 Medium
- Published
- May 27, 2025
- Updated
- Jun 6, 2025
- Reserved
- May 7, 2025
Description
On macOS systems, by utilizing a Launch Agent and loading the viscosity_openvpn process from the application bundle, it is possible to load a dynamic library with Viscosity's TCC (Transparency, Consent, and Control) identity. The acquired resource access is limited without entitlements such as access to the camera or microphone. Only user-granted permissions for file resources apply. Access to other resources beyond granted-permissions requires user interaction with a system prompt asking for permission.
This issue was fixed in version 1.11.5 of Viscosity.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | CERT-PL |
Weaknesses
- CWE-276 Incorrect Default Permissions
Affected Products
| Product | Versions |
|---|---|
ViscositySparkLabs |
|
References
- https://cert.pl/en/posts/2025/05/tcc-bypass/third-party-advisory
- https://www.sparklabs.com/viscosity/product
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