6.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.1%
Several vulnerabilities have been discovered in the FreeBSD kernel that may lead to a denial of service or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2013-5691 Loganaden Velvindron and Gleb Smirnoff discovered that the SIOCSIFADDR, SIOCSIFBRDADDR, SIOCSIFDSTADDR and SIOCSIFNETMASK ioctl requests do not perform input validation or verify the caller’s credentials.
Unprivileged user with the ability to run arbitrary code can cause any network interface in the system to perform the link layer actions associated with the above ioctl requests or trigger a kernel panic by passing a specially crafted address structure which causes a network interface driver to dereference an invalid pointer.
CVE-2013-5710 Konstantin Belousov discovered that the nullfs(5) implementation of the VOP_LINK(9) VFS operation does not check whether the source and target of the link are both in the same nullfs instance. It is therefore possible to create a hardlink from a location in one nullfs instance to a file in another, as long as the underlying (source) filesystem is the same. If multiple nullfs views into the same filesystem are mounted in different locations, a user may gain write access to files which are nominally on a read-only filesystem.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-2769. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(70353);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2013-5691", "CVE-2013-5710");
script_bugtraq_id(62302, 62303);
script_xref(name:"DSA", value:"2769");
script_name(english:"Debian DSA-2769-1 : kfreebsd-9 - privilege escalation/denial of service");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Several vulnerabilities have been discovered in the FreeBSD kernel
that may lead to a denial of service or privilege escalation. The
Common Vulnerabilities and Exposures project identifies the following
problems :
- CVE-2013-5691
Loganaden Velvindron and Gleb Smirnoff discovered that
the SIOCSIFADDR, SIOCSIFBRDADDR, SIOCSIFDSTADDR and
SIOCSIFNETMASK ioctl requests do not perform input
validation or verify the caller's credentials.
Unprivileged user with the ability to run arbitrary code
can cause any network interface in the system to perform
the link layer actions associated with the above ioctl
requests or trigger a kernel panic by passing a
specially crafted address structure which causes a
network interface driver to dereference an invalid
pointer.
- CVE-2013-5710
Konstantin Belousov discovered that the nullfs(5)
implementation of the VOP_LINK(9) VFS operation does not
check whether the source and target of the link are both
in the same nullfs instance. It is therefore possible to
create a hardlink from a location in one nullfs instance
to a file in another, as long as the underlying (source)
filesystem is the same. If multiple nullfs views into
the same filesystem are mounted in different locations,
a user may gain write access to files which are
nominally on a read-only filesystem."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2013-5691"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2013-5710"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/kfreebsd-9"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2013/dsa-2769"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the kfreebsd-9 packages.
For the stable distribution (wheezy), these problems have been fixed
in version 9.0-10+deb70.4."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:kfreebsd-9");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"patch_publication_date", value:"2013/10/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/10");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2013-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-headers-9.0-2-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-486", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-686", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-686-smp", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-amd64", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-malta", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-image-9.0-2-xen", reference:"9.0-10+deb70.4")) flag++;
if (deb_check(release:"7.0", prefix:"kfreebsd-source-9.0", reference:"9.0-10+deb70.4")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | kfreebsd-9 | p-cpe:/a:debian:debian_linux:kfreebsd-9 |
debian | debian_linux | 7.0 | cpe:/o:debian:debian_linux:7.0 |