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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DLA-3734.NASL
HistoryFeb 18, 2024 - 12:00 a.m.

Debian dla-3734 : openvswitch-common - security update

2024-02-1800:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
6
debian 10
vulnerability
openvswitch-common
icmpv6
neighbor advertisement
openflow rules
spoofed ip address
arbitrary ip addresses

CVSS3

7.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

AI Score

6.7

Confidence

Low

EPSS

0

Percentile

5.1%

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3734 advisory.

  • A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary IP addresses. (CVE-2023-5366)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3734. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(190675);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/18");

  script_cve_id("CVE-2023-5366");

  script_name(english:"Debian dla-3734 : openvswitch-common - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3734
advisory.

  - A flaw was found in Open vSwitch that allows ICMPv6 Neighbor Advertisement packets between virtual
    machines to bypass OpenFlow rules. This issue may allow a local attacker to create specially crafted
    packets with a modified or spoofed target IP address field that can redirect ICMPv6 traffic to arbitrary
    IP addresses. (CVE-2023-5366)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/openvswitch");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-5366");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/openvswitch");
  script_set_attribute(attribute:"solution", value:
"Upgrade the openvswitch-common packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:C/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-5366");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/10/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/02/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openvswitch-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openvswitch-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openvswitch-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openvswitch-pki");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openvswitch-switch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openvswitch-testcontroller");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openvswitch-vtep");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ovn-central");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ovn-controller-vtep");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ovn-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-openvswitch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3-openvswitch");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '10.0', 'prefix': 'openvswitch-common', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'openvswitch-dbg', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'openvswitch-dev', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'openvswitch-pki', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'openvswitch-switch', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'openvswitch-testcontroller', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'openvswitch-vtep', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'ovn-central', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'ovn-controller-vtep', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'ovn-host', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'python-openvswitch', 'reference': '2.10.7+ds1-0+deb10u5'},
    {'release': '10.0', 'prefix': 'python3-openvswitch', 'reference': '2.10.7+ds1-0+deb10u5'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'openvswitch-common / openvswitch-dbg / openvswitch-dev / etc');
}

CVSS3

7.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

AI Score

6.7

Confidence

Low

EPSS

0

Percentile

5.1%