openSUSE 15 Security Update : squirrel (openSUSE-SU-2023:0080-1)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2023:0080-1. The text itself
# is copyright (C) SUSE.
##

include('compat.inc');

if (description)
{
  script_id(173383);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/04/20");

  script_cve_id("CVE-2021-41556");

  script_name(english:"openSUSE 15 Security Update : squirrel (openSUSE-SU-2023:0080-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote openSUSE host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-
SU-2023:0080-1 advisory.

  - sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core
    interpreter) that can lead to Code Execution. If a victim executes an attacker-controlled squirrel script,
    it is possible for the attacker to break out of the squirrel script sandbox even if all dangerous
    functionality such as File System functions has been disabled. An attacker might abuse this bug to target
    (for example) Cloud services that allow customization via SquirrelScripts, or distribute malware through
    video games that embed a Squirrel Engine. (CVE-2021-41556)

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://bugzilla.suse.com/1201974");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/5NX6SWKNR7LNUXJROLGLSVD3ZEB4LUQY/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3a9d6ac6");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-41556");
  script_set_attribute(attribute:"solution", value:
"Update the affected squirrel, squirrel-devel, squirrel-devel-static and / or squirrel-examples packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/AC:L/PR:N/UI:N/S:C/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-2021-41556");

  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:"2022/07/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/03/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/03/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:squirrel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:squirrel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:squirrel-devel-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:squirrel-examples");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.4");
  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, 'openSUSE');
var _os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:os_release);
if (isnull(_os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
_os_ver = _os_ver[1];
if (os_release !~ "^(SUSE15\.4)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.4', os_release);
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, 'openSUSE ' + _os_ver, cpu);

var pkgs = [
    {'reference':'squirrel-3.0.7-bp154.3.3.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'squirrel-devel-3.0.7-bp154.3.3.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'squirrel-devel-static-3.0.7-bp154.3.3.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'squirrel-examples-3.0.7-bp154.3.3.1', 'release':'SUSE15.4', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var _cpu = 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['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (rpm_check(release:_release, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'squirrel / squirrel-devel / squirrel-devel-static / squirrel-examples');
}