Skip to content

Tauri's readDir Endpoint Scope can be Bypassed With Symbolic Links

Moderate severity GitHub Reviewed Published Sep 15, 2022 in tauri-apps/tauri • Updated Feb 7, 2023

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:

References

@tweidinger tweidinger published to tauri-apps/tauri Sep 15, 2022
Published by the National Vulnerability Database Sep 15, 2022
Published to the GitHub Advisory Database Sep 16, 2022
Reviewed Sep 16, 2022
Last updated Feb 7, 2023

Severity

Moderate
5.8
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

CVE ID

CVE-2022-39215

GHSA ID

GHSA-28m8-9j7v-x499

Source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.