PT-2024-5970 · Freebsd · Freebsd

Published 2024-08-07 · Updated 2024-08-13 · CVE-2024-6759

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions FreeBSD (affected versions not specified)

Description The issue is related to the readdir(3) function in the FreeBSD operating system, specifically when mounting a remote filesystem using NFS. The kernel does not properly sanitize remotely provided filenames for the path separator character, "/". This allows readdir(3) and related functions to return filesystem entries with names containing additional path components, leading to a confused deputy problem. For example, a program copying files from an NFS mount could be tricked into copying from outside the intended source directory, and/or to a location outside the intended destination directory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

BDU:2024-06778

CVE-2024-6759

FREEBSD-SA-24_07

Affected Products

Freebsd

References · 8

• https://osv.dev/vulnerability/CVE-2024-6759 · Vendor Advisory
• https://security.freebsd.org/advisories/FreeBSD-SA-24:07.nfsclient.asc · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06778 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-6759 · Security Note
• https://t.me/cvenotify/90114 · Telegram Post
• https://security.netapp.com/advisory/ntap-20240816-0009 · Note
• https://freebsd.org/security/advisories/FreeBSD-SA-24:07.nfsclient.asc · Note
• https://t.me/cvenotify/90343 · Telegram Post