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Test ID:1.3.6.1.4.1.25623.1.0.52645
Category:FreeBSD Local Security Checks
Title:FreeBSD Security Advisory (FreeBSD-SA-04:03.jail.asc)
Summary:The remote host is missing an update to the system; as announced in the referenced advisory FreeBSD-SA-04:03.jail.asc
Description:Summary:
The remote host is missing an update to the system
as announced in the referenced advisory FreeBSD-SA-04:03.jail.asc

Vulnerability Insight:
The jail(2) system call allows a system administrator to lock up a
process and all its descendants inside a closed environment with very
limited ability to affect the system outside that environment, even
for processes with superuser privileges. It is an extension of, but
far more stringent than, the traditional Unix chroot(2) system call.

The jail_attach(2) system call, which was introduced in FreeBSD 5
before 5.1-RELEASE, allows a non-jailed process to permanently move
into an existing jail.

A programming error has been found in the jail_attach(2) system call
which affects the way that system call verifies the privilege
level of the calling process. Instead of failing immediately if the
calling process was already jailed, the jail_attach(2) system call
would fail only after changing the calling process's root directory.

Solution:
Upgrade your system to the appropriate stable release
or security branch dated after the correction date.

CVSS Score:
4.6

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2004-0126
BugTraq ID: 9762
http://www.securityfocus.com/bid/9762
FreeBSD Security Advisory: FreeBSD-SA-04:03
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:03.jail.asc
http://www.osvdb.org/4101
XForce ISS Database: freebsd-jailattach-gain-privileges(15344)
https://exchange.xforce.ibmcloud.com/vulnerabilities/15344
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