CVE-2013-4851

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Summary

CVECVE-2013-4851
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-07-29 13:59:56 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the kernel in FreeBSD 8.3 and 9.x through 9.1-RELEASE-p5 controls authorization for host/subnet export entries on the basis of group information sent by the client, which allows remote attackers to bypass file permissions on NFS filesystems via crafted requests.

Risk And Classification

Primary CVSS: v2.0 6.4 from [email protected]

AV:N/AC:L/Au:N/C:P/I:P/A:N

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

AV:N/AC:L/Au:N/C:P/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Freebsd Freebsd 8.3 All All All
Operating System Freebsd Freebsd 9.0 All All All
Operating System Freebsd Freebsd 9.1 All All All
Operating System Freebsd Freebsd 9.1 p4 All All
Operating System Freebsd Freebsd 9.1 p5 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.freebsd.org/security/advisories/FreeBSD-SA-13:08.nfsserver.asc af854a3a-2127-422b-91ae-364da2661108 www.freebsd.org
[base] Revision 244226 af854a3a-2127-422b-91ae-364da2661108 svnweb.freebsd.org
FreeBSD 'nfsserver' Module CVE-2013-4851 Access Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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