Vulnerabilities > CVE-2019-9735 - Improper Handling of Exceptional Conditions vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4409. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(122957);
  script_version("1.2");
  script_cvs_date("Date: 2020/02/04");

  script_cve_id("CVE-2019-9735");
  script_xref(name:"DSA", value:"4409");

  script_name(english:"Debian DSA-4409-1 : neutron - security update");
  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:
"Erik Olof Gunnar Andersson discovered that incorrect validation of
port settings in the iptables security group driver of Neutron, the
OpenStack virtual network service, could result in denial of service
in a multi tenant setup."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/neutron"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/neutron"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2019/dsa-4409"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the neutron packages.

For the stable distribution (stretch), this problem has been fixed in
version 2:9.1.1-3+deb9u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:neutron");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/20");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 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:"9.0", prefix:"neutron-common", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-dhcp-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-l3-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-linuxbridge-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-macvtap-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-metadata-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-metering-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-openvswitch-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-plugin-linuxbridge-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-plugin-nec-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-plugin-openvswitch-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-server", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"neutron-sriov-agent", reference:"2:9.1.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"python-neutron", reference:"2:9.1.1-3+deb9u1")) 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");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4036-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(126256);
  script_version("1.3");
  script_cvs_date("Date: 2020/01/10");

  script_cve_id("CVE-2019-9735");
  script_xref(name:"USN", value:"4036-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.10 : neutron vulnerability (USN-4036-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Erik Olof Gunnar Andersson discovered that OpenStack Neutron
incorrectly handled certain security group rules in the iptables
firewall module. An authenticated attacker could possibly use this
issue to block further application of security group rules for other
instances.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/4036-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected python-neutron and / or python3-neutron packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python-neutron");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-neutron");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2019-2020 Canonical, Inc. / NASL script (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(16\.04|18\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.04 / 18.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"16.04", pkgname:"python-neutron", pkgver:"2:8.4.0-0ubuntu7.4")) flag++;
if (ubuntu_check(osver:"18.10", pkgname:"python-neutron", pkgver:"2:13.0.2-0ubuntu3.4")) flag++;
if (ubuntu_check(osver:"18.10", pkgname:"python3-neutron", pkgver:"2:13.0.2-0ubuntu3.4")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "python-neutron / python3-neutron");
}