Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : CUPS vulnerabilities (USN-5454-1)

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-5454-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##

include('compat.inc');

if (description)
{
  script_id(161723);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");

  script_cve_id("CVE-2019-8842", "CVE-2020-10001", "CVE-2022-26691");
  script_xref(name:"USN", value:"5454-1");

  script_name(english:"Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : CUPS vulnerabilities (USN-5454-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-5454-1 advisory.

    Joshua Mason discovered that CUPS incorrectly handled the secret key used to access the administrative web
    interface. A remote attacker could possibly use this issue to open a session as an administrator and
    execute arbitrary code. (CVE-2022-26691)

    It was discovered that CUPS incorrectly handled certain memory operations when handling IPP printing. A
    remote attacker could possibly use this issue to cause CUPS to crash, leading to a denial of service, or
    obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

    (CVE-2019-8842, CVE-2020-10001)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-5454-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  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:H/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-26691");

  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:"2019/12/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/05/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/05/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-bsd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-core-drivers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-ipp-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-ppdc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cups-server-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcups2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcups2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupscgi1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsimage2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsimage2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsmime1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcupsppdc1");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"Ubuntu Security Notice (C) 2022-2024 Canonical, Inc. / NASL script (C) 2022-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/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);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 18.04 / 20.04 / 22.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '18.04', 'pkgname': 'cups', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-bsd', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-client', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-common', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-core-drivers', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-daemon', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-ipp-utils', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-ppdc', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'cups-server-common', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'libcups2', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'libcups2-dev', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'libcupscgi1', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'libcupsimage2', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'libcupsimage2-dev', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'libcupsmime1', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '18.04', 'pkgname': 'libcupsppdc1', 'pkgver': '2.2.7-1ubuntu2.9'},
    {'osver': '20.04', 'pkgname': 'cups', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-bsd', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-client', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-common', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-core-drivers', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-daemon', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-ipp-utils', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-ppdc', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'cups-server-common', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'libcups2', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'libcups2-dev', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'libcupsimage2', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '20.04', 'pkgname': 'libcupsimage2-dev', 'pkgver': '2.3.1-9ubuntu1.2'},
    {'osver': '22.04', 'pkgname': 'cups', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-bsd', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-client', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-common', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-core-drivers', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-daemon', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-ipp-utils', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-ppdc', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'cups-server-common', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'libcups2', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'libcups2-dev', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'libcupsimage2', 'pkgver': '2.4.1op1-1ubuntu4.1'},
    {'osver': '22.04', 'pkgname': 'libcupsimage2-dev', 'pkgver': '2.4.1op1-1ubuntu4.1'}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  var extra = '';
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : extra
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'cups / cups-bsd / cups-client / cups-common / cups-core-drivers / etc');
}