Vulnerability Details CVE-2013-4851
The 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 43.2%
CVSS Severity
CVSS v2 Score 6.4
References
- http://svnweb.freebsd.org/base?view=revision&revision=244226
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:08.nfsserver.asc
- http://www.securityfocus.com/bid/61484
- http://svnweb.freebsd.org/base?view=revision&revision=244226
- http://www.freebsd.org/security/advisories/FreeBSD-SA-13:08.nfsserver.asc
- http://www.securityfocus.com/bid/61484