Zed Extension Sandbox Escape via Tar Symlink Following
Résumé
Zed Extension Sandbox Escape via Tar Symlink Following
Description d'origine
La description telle que publiée par la source (souvent en anglais).
Zed, a code editor, has an extension installer allows tar/gzip downloads. Prior to version 0.224.4, the tar extractor (async_tar::Archive::unpack) creates symlinks from the archive without validation, and the path guard (writeable_path_from_extension) only performs lexical prefix checks without resolving symlinks. An attacker can ship a tar that first creates a symlink inside the extension workdir pointing outside (e.g., escape -> /), then writes files through the symlink, causing writes to arbitrary host paths. This escapes the extension sandbox and enables code execution. Version 0.224.4 patches the issue.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Références
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov