SUSE SLES12 Security Update : cups (SUSE-SU-2023:3706-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2023:3706-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(181738);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/10");

  script_cve_id("CVE-2023-4504", "CVE-2023-32360", "CVE-2023-34241");
  script_xref(name:"SuSE", value:"SUSE-SU-2023:3706-1");

  script_name(english:"SUSE SLES12 Security Update : cups (SUSE-SU-2023:3706-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2023:3706-1 advisory.

  - An authentication issue was addressed with improved state management. This issue is fixed in macOS Big Sur
    11.7.7, macOS Monterey 12.6.6, macOS Ventura 13.4. An unauthenticated user may be able to access recently
    printed documents. (CVE-2023-32360)

  - OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like
    operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to
    the logging service AFTER the connection has been closed, when it should have logged the data right
    before. This is a use-after-free bug that impacts the entire cupsd process. The exact cause of this issue
    is the function `httpClose(con->http)` being called in `scheduler/client.c`. The problem is that httpClose
    always, provided its argument is not null, frees the pointer at the end of the call, only for
    cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient`
    if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address
    (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP
    wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`. Version
    2.4.6 has a patch for this issue. (CVE-2023-34241)

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://bugzilla.suse.com/1212230");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1214254");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1215204");
  # https://lists.suse.com/pipermail/sle-security-updates/2023-September/016254.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2f33b896");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-32360");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-34241");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-4504");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-4504");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-34241");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/05/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/09/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cups");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cups-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cups-ddk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cups-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cups-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cups-libs-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');

if (!get_kb_item("Host/SuSE/rpm-list")) 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, 'SUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2|4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP2/4/5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(4|5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP4/5", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'cups-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
    {'reference':'cups-client-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
    {'reference':'cups-libs-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
    {'reference':'cups-libs-32bit-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
    {'reference':'cups-1.7.5-20.46.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cups-client-1.7.5-20.46.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cups-ddk-1.7.5-20.46.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cups-devel-1.7.5-20.46.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cups-libs-1.7.5-20.46.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cups-libs-32bit-1.7.5-20.46.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
    {'reference':'cups-ddk-1.7.5-20.46.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5', 'sles-release-12.5']},
    {'reference':'cups-devel-1.7.5-20.46.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5', 'sles-release-12.5']},
    {'reference':'cups-1.7.5-20.46.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
    {'reference':'cups-client-1.7.5-20.46.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
    {'reference':'cups-libs-1.7.5-20.46.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
    {'reference':'cups-libs-32bit-1.7.5-20.46.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-bcl-release-12.2']},
    {'reference':'cups-1.7.5-20.46.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
    {'reference':'cups-client-1.7.5-20.46.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
    {'reference':'cups-libs-1.7.5-20.46.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
    {'reference':'cups-libs-32bit-1.7.5-20.46.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
    {'reference':'cups-1.7.5-20.46.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'cups-client-1.7.5-20.46.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'cups-libs-1.7.5-20.46.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'cups-libs-32bit-1.7.5-20.46.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
    {'reference':'cups-1.7.5-20.46.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-4']},
    {'reference':'cups-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-4']},
    {'reference':'cups-client-1.7.5-20.46.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-4']},
    {'reference':'cups-client-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-4']},
    {'reference':'cups-libs-1.7.5-20.46.1', 'sp':'4', 'cpu':'aarch64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-4']},
    {'reference':'cups-libs-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-4']},
    {'reference':'cups-libs-32bit-1.7.5-20.46.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-4']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        if ('ltss' >< tolower(check)) ltss_caveat_required = TRUE;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
  }
}

if (flag)
{
  var ltss_plugin_caveat = NULL;
  if(ltss_caveat_required) ltss_plugin_caveat = '\n' +
    'NOTE: This vulnerability check contains fixes that apply to\n' +
    'packages only available in SUSE Enterprise Linux Server LTSS\n' +
    'repositories. Access to these package security updates require\n' +
    'a paid SUSE LTSS subscription.\n';
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + ltss_plugin_caveat
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'cups / cups-client / cups-ddk / cups-devel / cups-libs / etc');
}