SUSE SLED15 / SLES15 Security Update : python (SUSE-SU-2022:1091-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:1091-1. The text itself
# is copyright (C) SUSE.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(159475);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");

  script_cve_id("CVE-2021-3572", "CVE-2021-4189", "CVE-2022-0391");
  script_xref(name:"SuSE", value:"SUSE-SU-2022:1091-1");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : python (SUSE-SU-2022:1091-1)");

  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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by
multiple vulnerabilities as referenced in the SUSE-SU-2022:1091-1 advisory.

  - A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote
    attacker could possibly use this issue to install a different revision on a repository. The highest threat
    from this vulnerability is to data integrity. This is fixed in python-pip version 21.1. (CVE-2021-3572)

  - A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV
    (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This
    flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back
    to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which
    otherwise would not have been possible. (CVE-2021-4189)

  - A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform
    Resource Locator (URL) strings into components. The issue involves how the urlparse method does not
    sanitize input and allows characters like '\r' and '
' in the URL path. This flaw allows an attacker to
    input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1,
    3.9.5, 3.8.11, 3.7.11 and 3.6.14. (CVE-2022-0391)

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/1175619");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1186819");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1194146");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1195396");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3572");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-4189");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-0391");
  # https://lists.suse.com/pipermail/sle-security-updates/2022-April/010619.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4dce4895");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0391");

  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:"2021/11/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libpython2_7-1_0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-curses");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-gdbm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-tk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:python-xml");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  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) 2022-2023 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:"^(SLED15|SLED_SAP15|SLES15|SLES_SAP15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15', '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 == "SLED15" && (! preg(pattern:"^(3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP3", os_ver + " SP" + service_pack);
if (os_ver == "SLED_SAP15" && (! preg(pattern:"^(3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED_SAP15 SP3", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(2|3|4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP2/3/4", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP15" && (! preg(pattern:"^(3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP15 SP3", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'libpython2_7-1_0-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'libpython2_7-1_0-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-base-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-base-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-curses-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-curses-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-devel-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-devel-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-gdbm-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-gdbm-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-tk-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-tk-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-xml-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'python-xml-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES_SAP15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-15.3']},
    {'reference':'libpython2_7-1_0-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-basesystem-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'libpython2_7-1_0-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-basesystem-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-basesystem-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-basesystem-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-base-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-basesystem-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-base-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-basesystem-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-curses-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-curses-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-devel-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-devel-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-gdbm-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-gdbm-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-tk-2.7.18-150000.38.1', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-desktop-applications-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-tk-2.7.18-150000.38.1', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-desktop-applications-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-xml-2.7.18-150000.38.2', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'python-xml-2.7.18-150000.38.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-15.3', 'sle-module-python2-release-15.3', 'sled-release-15.3', 'sles-release-15.3']},
    {'reference':'libpython2_7-1_0-2.7.18-150000.38.2', 'sp':'2', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-15.2']},
    {'reference':'python-2.7.18-150000.38.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-15.2']},
    {'reference':'python-base-2.7.18-150000.38.2', 'sp':'2', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-15.2']},
    {'reference':'python-tk-2.7.18-150000.38.1', 'sp':'2', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_RT-release-15.2']},
    {'reference':'python-xml-2.7.18-150000.38.2', 'sp':'4', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-python3-release-15.4']}
];

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;
        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)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, 'libpython2_7-1_0 / python / python-base / python-curses / etc');
}