NFS client accepts file names containing path separators
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.
Summary
When mounting a remote filesystem using NFS, the kernel did not 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. The lack of validation described above gives rise 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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| FreeBSD | FreeBSD | 14.1-RELEASE to before p3; 14.0-RELEASE to before p9; 13.3-RELEASE to before p5 | p3, p9, p5 | Patch available | CNA |
- FreeBSD VendorFreeBSD Affected 14.1-RELEASE to before p3; 14.0-RELEASE to before p9; 13.3-RELEASE to before p5 Fixed in p3, p9, p5 Patch available CNA
CPE configurations NVD · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* | before 13.0; 13.1 to before 13.3 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:13.3:p1:*:*:*:*:*:* | 13.3 p1 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:13.3:p2:*:*:*:*:*:* | 13.3 p2 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:13.3:p3:*:*:*:*:*:* | 13.3 p3 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:13.3:p4:*:*:*:*:*:* | 13.3 p4 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:beta5:*:*:*:*:*:* | 14.0 beta5 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:p1:*:*:*:*:*:* | 14.0 p1 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:p2:*:*:*:*:*:* | 14.0 p2 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:p3:*:*:*:*:*:* | 14.0 p3 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:p4:*:*:*:*:*:* | 14.0 p4 | Vulnerable | FreeBSD |
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* Versions before 13.0; 13.1 to before 13.3 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:13.3:p1:*:*:*:*:*:* Versions 13.3 p1 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:13.3:p2:*:*:*:*:*:* Versions 13.3 p2 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:13.3:p3:*:*:*:*:*:* Versions 13.3 p3 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:13.3:p4:*:*:*:*:*:* Versions 13.3 p4 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:beta5:*:*:*:*:*:* Versions 14.0 beta5 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:p1:*:*:*:*:*:* Versions 14.0 p1 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:p2:*:*:*:*:*:* Versions 14.0 p2 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:p3:*:*:*:*:*:* Versions 14.0 p3 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:p4:*:*:*:*:*:* Versions 14.0 p4 Vulnerable ·FreeBSD
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:freebsd:freebsd:14.0:p5:*:*:*:*:*:* | 14.0 p5 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:p6:*:*:*:*:*:* | 14.0 p6 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:p7:*:*:*:*:*:* | 14.0 p7 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:p8:*:*:*:*:*:* | 14.0 p8 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:rc3:*:*:*:*:*:* | 14.0 rc3 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.0:rc4-p1:*:*:*:*:*:* | 14.0 rc4-p1 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.1:p1:*:*:*:*:*:* | 14.1 p1 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:14.1:p2:*:*:*:*:*:* | 14.1 p2 | Vulnerable | FreeBSD |
- cpe:2.3:o:freebsd:freebsd:14.0:p5:*:*:*:*:*:* Versions 14.0 p5 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:p6:*:*:*:*:*:* Versions 14.0 p6 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:p7:*:*:*:*:*:* Versions 14.0 p7 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:p8:*:*:*:*:*:* Versions 14.0 p8 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:rc3:*:*:*:*:*:* Versions 14.0 rc3 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.0:rc4-p1:*:*:*:*:*:* Versions 14.0 rc4-p1 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.1:p1:*:*:*:*:*:* Versions 14.1 p1 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:14.1:p2:*:*:*:*:*:* Versions 14.1 p2 Vulnerable ·FreeBSD
Remediation
- Fix · CNA FreeBSD (FreeBSD) Fixed in p3, p9, p5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
FreeBSD p3, p5, p9
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2024-07034 OpenSSH pre-authentication async signal safety issuePriority MEDIUM 41
- TI-2024-06267 ktrace(2) fails to detach when executing a setuid binaryPriority LOW 34
- TI-2024-06157 pf incorrectly matches different ICMPv6 states in the state tablePriority LOW 28
Timeline
- 2026-10-02 Threatist record created from CVE-2024-6759
- 2026-10-03 Alias added: GHSA-96rc-h8f4-67gc
References
More Freebsd vulnerabilities
- TI-2011-04182 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT… CVSS 2.0HIGH 10.0
- TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
- TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
- TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
- TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
- TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
Sources
- CVE-2024-6759 · CVE Program
- CVE-2024-6759 · NVD
- FIRST EPSS
- GHSA-96rc-h8f4-67gc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences