Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2022-39347
CVE-2022-39347:
NixOS vulnerability analysis and mitigation
Overview
CVE-2022-39347 affects FreeRDP, a free remote desktop protocol library and clients. The vulnerability was discovered by Team BT5 (BoB 11th) and involves missing path canonicalization and base path check for the drive channel in versions <= 2.8.1 (GitHub Advisory).
Technical details
The vulnerability stems from insufficient path validation in the drive channel functionality. The issue was fixed by implementing proper path canonicalization and adding base path checks to prevent directory traversal attempts (Red Hat Advisory).
Impact
A malicious server can exploit this vulnerability to trick a FreeRDP-based client into reading files outside the shared directory, potentially exposing sensitive information (Ubuntu Security Notice).
Mitigation and workarounds
The vulnerability has been patched in FreeRDP version 2.9.0. Users should upgrade to this version or later. As a temporary workaround, users can avoid using the /drive, /drives or +home-drive redirection switches (GitHub Advisory).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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