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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2023-4705.NASL
HistoryAug 22, 2023 - 12:00 a.m.

RHEL 8 : subscription-manager (RHSA-2023:4705)

2023-08-2200:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
9
rhel 8
subscription-manager
red hat
security update
vulnerability
d-bus interface
rhsa-2023:4705
authorization
local users

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:4705 advisory.

  • subscription-manager: inadequate authorization of com.redhat.RHSM1 D-Bus interface allows local users to modify configuration (CVE-2023-3899)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2023:4705. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(180034);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id("CVE-2023-3899");
  script_xref(name:"RHSA", value:"2023:4705");

  script_name(english:"RHEL 8 : subscription-manager (RHSA-2023:4705)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for subscription-manager.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2023:4705 advisory.

  - subscription-manager: inadequate authorization of com.redhat.RHSM1 D-Bus interface allows local users to
    modify configuration (CVE-2023-3899)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_4705.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ce0bcde8");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2225407");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:4705");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL subscription-manager package based on the guidance in RHSA-2023:4705.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/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:L/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-2023-3899");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(285);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/08/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/08/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:8.6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dnf-plugin-subscription-manager");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-cloud-what");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-subscription-manager-rhsm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python3-syspurpose");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhsm-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhsm-icons");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:subscription-manager");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:subscription-manager-cockpit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:subscription-manager-initial-setup-addon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:subscription-manager-migration");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:subscription-manager-plugin-ostree");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:subscription-manager-rhsm-certificates");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'eq', os_version: os_ver, rhel_version: '8.6')) audit(AUDIT_OS_NOT, 'Red Hat 8.6', 'Red Hat ' + os_ver);

if (!get_kb_item('Host/RedHat/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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'repo_relative_urls': [
      'content/aus/rhel8/8.6/x86_64/appstream/debug',
      'content/aus/rhel8/8.6/x86_64/appstream/os',
      'content/aus/rhel8/8.6/x86_64/appstream/source/SRPMS',
      'content/aus/rhel8/8.6/x86_64/baseos/debug',
      'content/aus/rhel8/8.6/x86_64/baseos/os',
      'content/aus/rhel8/8.6/x86_64/baseos/source/SRPMS',
      'content/e4s/rhel8/8.6/ppc64le/appstream/debug',
      'content/e4s/rhel8/8.6/ppc64le/appstream/os',
      'content/e4s/rhel8/8.6/ppc64le/appstream/source/SRPMS',
      'content/e4s/rhel8/8.6/ppc64le/baseos/debug',
      'content/e4s/rhel8/8.6/ppc64le/baseos/os',
      'content/e4s/rhel8/8.6/ppc64le/baseos/source/SRPMS',
      'content/e4s/rhel8/8.6/x86_64/appstream/debug',
      'content/e4s/rhel8/8.6/x86_64/appstream/os',
      'content/e4s/rhel8/8.6/x86_64/appstream/source/SRPMS',
      'content/e4s/rhel8/8.6/x86_64/baseos/debug',
      'content/e4s/rhel8/8.6/x86_64/baseos/os',
      'content/e4s/rhel8/8.6/x86_64/baseos/source/SRPMS',
      'content/eus/rhel8/8.6/aarch64/appstream/debug',
      'content/eus/rhel8/8.6/aarch64/appstream/os',
      'content/eus/rhel8/8.6/aarch64/appstream/source/SRPMS',
      'content/eus/rhel8/8.6/aarch64/baseos/debug',
      'content/eus/rhel8/8.6/aarch64/baseos/os',
      'content/eus/rhel8/8.6/aarch64/baseos/source/SRPMS',
      'content/eus/rhel8/8.6/ppc64le/appstream/debug',
      'content/eus/rhel8/8.6/ppc64le/appstream/os',
      'content/eus/rhel8/8.6/ppc64le/appstream/source/SRPMS',
      'content/eus/rhel8/8.6/ppc64le/baseos/debug',
      'content/eus/rhel8/8.6/ppc64le/baseos/os',
      'content/eus/rhel8/8.6/ppc64le/baseos/source/SRPMS',
      'content/eus/rhel8/8.6/s390x/appstream/debug',
      'content/eus/rhel8/8.6/s390x/appstream/os',
      'content/eus/rhel8/8.6/s390x/appstream/source/SRPMS',
      'content/eus/rhel8/8.6/s390x/baseos/debug',
      'content/eus/rhel8/8.6/s390x/baseos/os',
      'content/eus/rhel8/8.6/s390x/baseos/source/SRPMS',
      'content/eus/rhel8/8.6/x86_64/appstream/debug',
      'content/eus/rhel8/8.6/x86_64/appstream/os',
      'content/eus/rhel8/8.6/x86_64/appstream/source/SRPMS',
      'content/eus/rhel8/8.6/x86_64/baseos/debug',
      'content/eus/rhel8/8.6/x86_64/baseos/os',
      'content/eus/rhel8/8.6/x86_64/baseos/source/SRPMS',
      'content/tus/rhel8/8.6/x86_64/appstream/debug',
      'content/tus/rhel8/8.6/x86_64/appstream/os',
      'content/tus/rhel8/8.6/x86_64/appstream/source/SRPMS',
      'content/tus/rhel8/8.6/x86_64/baseos/debug',
      'content/tus/rhel8/8.6/x86_64/baseos/os',
      'content/tus/rhel8/8.6/x86_64/baseos/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'dnf-plugin-subscription-manager-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-cloud-what-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-subscription-manager-rhsm-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-syspurpose-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rhsm-gtk-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rhsm-icons-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'subscription-manager-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'subscription-manager-cockpit-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'subscription-manager-initial-setup-addon-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'subscription-manager-migration-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'subscription-manager-plugin-ostree-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'subscription-manager-rhsm-certificates-1.28.29.1-2.el8_6', 'sp':'6', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_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;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        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, cves:cves)) flag++;
  }
}

if (flag)
{
  var subscription_caveat = '\n' +
    'NOTE: This vulnerability check contains fixes that apply to\n' +
    'packages only available in the Red Hat Enterprise Linux\n' +
    'Extended Update Support repository.\n' +
    'Access to this repository requires a paid RHEL subscription.\n';
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = subscription_caveat + rpm_report_get() + redhat_report_repo_caveat();
  else extra = subscription_caveat + rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'dnf-plugin-subscription-manager / python3-cloud-what / etc');
}
VendorProductVersionCPE
redhatrhel_eus8.6cpe:/o:redhat:rhel_eus:8.6
redhatenterprise_linuxdnf-plugin-subscription-managerp-cpe:/a:redhat:enterprise_linux:dnf-plugin-subscription-manager
redhatenterprise_linuxpython3-cloud-whatp-cpe:/a:redhat:enterprise_linux:python3-cloud-what
redhatenterprise_linuxpython3-subscription-manager-rhsmp-cpe:/a:redhat:enterprise_linux:python3-subscription-manager-rhsm
redhatenterprise_linuxpython3-syspurposep-cpe:/a:redhat:enterprise_linux:python3-syspurpose
redhatenterprise_linuxrhsm-gtkp-cpe:/a:redhat:enterprise_linux:rhsm-gtk
redhatenterprise_linuxrhsm-iconsp-cpe:/a:redhat:enterprise_linux:rhsm-icons
redhatenterprise_linuxsubscription-managerp-cpe:/a:redhat:enterprise_linux:subscription-manager
redhatenterprise_linuxsubscription-manager-cockpitp-cpe:/a:redhat:enterprise_linux:subscription-manager-cockpit
redhatenterprise_linuxsubscription-manager-initial-setup-addonp-cpe:/a:redhat:enterprise_linux:subscription-manager-initial-setup-addon
Rows per page:
1-10 of 131

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%