Vulnerability Monitor

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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.

Published

2013-07-29T13:59:56.933

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.4 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-264
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System freebsd freebsd 8.3 Yes
Operating System freebsd freebsd 9.0 Yes
Operating System freebsd freebsd 9.1 Yes
Operating System freebsd freebsd 9.1 Yes
Operating System freebsd freebsd 9.1 Yes
References