Headline
GHSA-28m8-9j7v-x499: Tauri's readDir Endpoint Scope can be Bypassed With Symbolic Links
Impact
Due to missing canonicalization when readDir is called recursively, it was possible to display directory listings outside of the defined fs scope. This required a crafted symbolic link or junction folder inside an allowed path of the fs scope. No arbitrary file content could be leaked.
Patches
The issue has been resolved in https://github.com/tauri-apps/tauri/pull/5123 and the implementation now properly checks if the
requested (sub) directory is a symbolic link outside of the defined scope.
Workarounds
Disable the readDir endpoint in the allowlist inside the tauri.conf.json.
For more information
This issue was initially reported by martin-ocasek in #4882.
If you have any questions or comments about this advisory:
- Open an issue in tauri
- Email us at [email protected]
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2022-39215
Tauri’s readDir Endpoint Scope can be Bypassed With Symbolic Links
Low severity GitHub Reviewed Published Sep 16, 2022 in tauri-apps/tauri • Updated Sep 16, 2022
Vulnerability details Dependabot alerts 0
Package
cargo tauri (Rust)
Affected versions
< 1.0.6
Patched versions
1.0.6
Description
Impact
Due to missing canonicalization when readDir is called recursively, it was possible to display directory listings outside of the defined fs scope. This required a crafted symbolic link or junction folder inside an allowed path of the fs scope. No arbitrary file content could be leaked.
Patches
The issue has been resolved in tauri-apps/tauri#5123 and the implementation now properly checks if the
requested (sub) directory is a symbolic link outside of the defined scope.
Workarounds
Disable the readDir endpoint in the allowlist inside the tauri.conf.json.
For more information
This issue was initially reported by martin-ocasek in #4882.
If you have any questions or comments about this advisory:
- Open an issue in tauri
- Email us at [email protected]
References
- GHSA-28m8-9j7v-x499
- https://nvd.nist.gov/vuln/detail/CVE-2022-39215
- tauri-apps/tauri#4882
- tauri-apps/tauri#5123
- tauri-apps/tauri@1f9b9e8
- tauri-apps/tauri@bb17882
- https://github.com/tauri-apps/tauri/releases/tag/tauri-v1.0.6
tweidinger published the maintainer security advisory
Sep 15, 2022
Severity
Low
Weaknesses
CWE-22
CVE ID
CVE-2022-39215
GHSA ID
GHSA-28m8-9j7v-x499
Source code
tauri-apps/tauri
Credits
- martin-ocasek
Checking history
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Related news
Tauri is a framework for building binaries for all major desktop platforms. Due to missing canonicalization when `readDir` is called recursively, it was possible to display directory listings outside of the defined `fs` scope. This required a crafted symbolic link or junction folder inside an allowed path of the `fs` scope. No arbitrary file content could be leaked. The issue has been resolved in version 1.0.6 and the implementation now properly checks if the requested (sub) directory is a symbolic link outside of the defined `scope`. Users are advised to upgrade. Users unable to upgrade should disable the `readDir` endpoint in the `allowlist` inside the `tauri.conf.json`.