💣Exploit CVE-2024-51481 - Nix Allows Builders to Read World-Readable Paths and Write World-Writable Paths Outside of Sandbox

[Maksim]

CVE ID : CVE-2024-51481
Published : Oct. 31, 2024, 5:15 p.m. | 3 hours, 5 minutes ago
Description : Nix is a package manager for Linux and other Unix systems. On macOS, built-in builders (such as `builtin:fetchurl`, exposed to users with `import fetchurl.nix>`) were not executed in the macOS sandbox. Thus, these builders (which are running under the `nixbld*` users) had read access to world-readable paths and write access to world-writable paths outside of the sandbox. This issue is fixed in 2.18.9, 2.19.7, 2.20.9, 2.21.5, 2.22.4, 2.23.4, and 2.24.10. Note that sandboxing is not enabled by default on macOS. The Nix sandbox is not primarily intended as a security mechanism, but as an aid to improve reproducibility and purity of Nix builds. However, sandboxing *can* mitigate the impact of other security issues by limiting what parts of the host system a build has access to.
Severity: 0.0 | NA
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