Path Traversal in Freerdp

CVE-2022-39347

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing path canonicalization and base path check for `drive` channel. A malicious server can trick a FreeRDP based client to read files outside the shared directory. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the `/drive`, `/drives` or `+home-drive` redirection switch.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.009 (55.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-39347?
CVE-2022-39347 is a low-severity vulnerability in Freerdp, classified under Path Traversal. CVSS score: 2.6/10. Published 2022-11-16.
How severe is CVE-2022-39347?
Low severity. CVSS v3 base score is 2.6 out of 10.