Rocky Linux 9 : cups-filters (RLSA-2023:3423)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Rocky Linux Security Advisory RLSA-2023:3423.
##

include('compat.inc');

if (description)
{
  script_id(180387);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/08/31");

  script_cve_id("CVE-2023-24805");
  script_xref(name:"RLSA", value:"2023:3423");

  script_name(english:"Rocky Linux 9 : cups-filters (RLSA-2023:3423)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Rocky Linux host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the
RLSA-2023:3423 advisory.

  - cups-filters contains backends, filters, and other software required to get the cups printing service
    working on operating systems other than macos. If you use the Backend Error Handler (beh) to create an
    accessible network printer, this security vulnerability can cause remote code execution. `beh.c` contains
    the line `retval = system(cmdline) >> 8;` which calls the `system` command with the operand `cmdline`.
    `cmdline` contains multiple user controlled, unsanitized values. As a result an attacker with network
    access to the hosted print server can exploit this vulnerability to inject system commands which are
    executed in the context of the running server. This issue has been addressed in commit `8f2740357` and is
    expected to be bundled in the next release. Users are advised to upgrade when possible and to restrict
    access to network printers in the meantime. (CVE-2023-24805)

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://errata.rockylinux.org/RLSA-2023:3423");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2203051");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2023-24805");

  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:"2023/05/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:cups-filters");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:cups-filters-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:cups-filters-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:cups-filters-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:cups-filters-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:cups-filters-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:rocky:linux:9");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Rocky Linux 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/RockyLinux/release", "Host/RockyLinux/rpm-list", "Host/cpu");

  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/RockyLinux/release');
if (isnull(os_release) || 'Rocky Linux' >!< os_release) audit(AUDIT_OS_NOT, 'Rocky Linux');
var os_ver = pregmatch(pattern: "Rocky(?: Linux)? release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Rocky Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Rocky Linux 9.x', 'Rocky Linux ' + os_ver);

if (!get_kb_item('Host/RockyLinux/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, 'Rocky Linux', cpu);

var pkgs = [
    {'reference':'cups-filters-1.28.7-11.el9_2.1', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-1.28.7-11.el9_2.1', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-1.28.7-11.el9_2.1', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-debuginfo-1.28.7-11.el9_2.1', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-debuginfo-1.28.7-11.el9_2.1', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-debuginfo-1.28.7-11.el9_2.1', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-debugsource-1.28.7-11.el9_2.1', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-debugsource-1.28.7-11.el9_2.1', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-debugsource-1.28.7-11.el9_2.1', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-devel-1.28.7-11.el9_2.1', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-devel-1.28.7-11.el9_2.1', 'cpu':'i686', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-devel-1.28.7-11.el9_2.1', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-devel-1.28.7-11.el9_2.1', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-libs-1.28.7-11.el9_2.1', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-libs-1.28.7-11.el9_2.1', 'cpu':'i686', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-libs-1.28.7-11.el9_2.1', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-libs-1.28.7-11.el9_2.1', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-libs-debuginfo-1.28.7-11.el9_2.1', 'cpu':'aarch64', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-libs-debuginfo-1.28.7-11.el9_2.1', 'cpu':'s390x', 'release':'9', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cups-filters-libs-debuginfo-1.28.7-11.el9_2.1', 'cpu':'x86_64', 'release':'9', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'Rocky-' + 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['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'cups-filters / cups-filters-debuginfo / cups-filters-debugsource / etc');
}