Lucene search

K
nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2023-3582.NASL
HistoryJun 14, 2023 - 12:00 a.m.

RHEL 8 : .NET 6.0 (RHSA-2023:3582)

2023-06-1400:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
19
redhat enterprise linux
.net
vulnerabilities
rhsa-2023-3582
denial of service
remote code execution

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.3

Confidence

High

EPSS

0.01

Percentile

84.0%

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:3582 advisory.

  • dotnet: Bypass restrictions when deserializing a DataSet or DataTable from XML (CVE-2023-24936)

  • dotnet: .NET Kestrel: Denial of Service processing X509 Certificates (CVE-2023-29331)

  • dotnet: vulnerability exists in NuGet where a potential race condition can lead to a symlink attack (CVE-2023-29337)

  • dotnet: Remote Code Execution - Source generators issue can lead to a crash due to unmanaged heap corruption (CVE-2023-33128)

Note that Nessus has not tested for these issues 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-2023:3582. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(177316);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/28");

  script_cve_id(
    "CVE-2023-24936",
    "CVE-2023-29331",
    "CVE-2023-29337",
    "CVE-2023-33128"
  );
  script_xref(name:"RHSA", value:"2023:3582");
  script_xref(name:"IAVA", value:"2023-A-0311");
  script_xref(name:"IAVA", value:"2023-A-0298-S");
  script_xref(name:"IAVA", value:"2023-A-0291-S");

  script_name(english:"RHEL 8 : .NET 6.0 (RHSA-2023:3582)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2023:3582 advisory.

  - dotnet: Bypass restrictions when deserializing a DataSet or DataTable from XML (CVE-2023-24936)

  - dotnet: .NET Kestrel: Denial of Service processing X509 Certificates (CVE-2023-29331)

  - dotnet: vulnerability exists in NuGet where a potential race condition can lead to a symlink attack
    (CVE-2023-29337)

  - dotnet: Remote Code Execution - Source generators issue can lead to a crash due to unmanaged heap
    corruption (CVE-2023-33128)

Note that Nessus has not tested for these issues 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_3582.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?327694ef");
  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=2192438");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2212617");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2212618");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=2213703");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2023:3582");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/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:N/AC:H/PR:N/UI:R/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-2023-24936");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/06/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/06/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:aspnetcore-runtime-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-6.0-source-built-artifacts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-templates-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet6.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', '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/dist/rhel8/8.10/aarch64/appstream/debug',
      'content/dist/rhel8/8.10/aarch64/appstream/os',
      'content/dist/rhel8/8.10/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.10/aarch64/codeready-builder/debug',
      'content/dist/rhel8/8.10/aarch64/codeready-builder/os',
      'content/dist/rhel8/8.10/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.10/s390x/appstream/debug',
      'content/dist/rhel8/8.10/s390x/appstream/os',
      'content/dist/rhel8/8.10/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.10/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.10/s390x/codeready-builder/os',
      'content/dist/rhel8/8.10/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.10/x86_64/appstream/debug',
      'content/dist/rhel8/8.10/x86_64/appstream/os',
      'content/dist/rhel8/8.10/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.10/x86_64/codeready-builder/debug',
      'content/dist/rhel8/8.10/x86_64/codeready-builder/os',
      'content/dist/rhel8/8.10/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.6/aarch64/appstream/debug',
      'content/dist/rhel8/8.6/aarch64/appstream/os',
      'content/dist/rhel8/8.6/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.6/aarch64/codeready-builder/debug',
      'content/dist/rhel8/8.6/aarch64/codeready-builder/os',
      'content/dist/rhel8/8.6/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.6/s390x/appstream/debug',
      'content/dist/rhel8/8.6/s390x/appstream/os',
      'content/dist/rhel8/8.6/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.6/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.6/s390x/codeready-builder/os',
      'content/dist/rhel8/8.6/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.6/x86_64/appstream/debug',
      'content/dist/rhel8/8.6/x86_64/appstream/os',
      'content/dist/rhel8/8.6/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.6/x86_64/codeready-builder/debug',
      'content/dist/rhel8/8.6/x86_64/codeready-builder/os',
      'content/dist/rhel8/8.6/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.8/aarch64/appstream/debug',
      'content/dist/rhel8/8.8/aarch64/appstream/os',
      'content/dist/rhel8/8.8/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.8/aarch64/codeready-builder/debug',
      'content/dist/rhel8/8.8/aarch64/codeready-builder/os',
      'content/dist/rhel8/8.8/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.8/s390x/appstream/debug',
      'content/dist/rhel8/8.8/s390x/appstream/os',
      'content/dist/rhel8/8.8/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.8/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.8/s390x/codeready-builder/os',
      'content/dist/rhel8/8.8/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.8/x86_64/appstream/debug',
      'content/dist/rhel8/8.8/x86_64/appstream/os',
      'content/dist/rhel8/8.8/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.8/x86_64/codeready-builder/debug',
      'content/dist/rhel8/8.8/x86_64/codeready-builder/os',
      'content/dist/rhel8/8.8/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.9/aarch64/appstream/debug',
      'content/dist/rhel8/8.9/aarch64/appstream/os',
      'content/dist/rhel8/8.9/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8.9/aarch64/codeready-builder/debug',
      'content/dist/rhel8/8.9/aarch64/codeready-builder/os',
      'content/dist/rhel8/8.9/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.9/s390x/appstream/debug',
      'content/dist/rhel8/8.9/s390x/appstream/os',
      'content/dist/rhel8/8.9/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8.9/s390x/codeready-builder/debug',
      'content/dist/rhel8/8.9/s390x/codeready-builder/os',
      'content/dist/rhel8/8.9/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8.9/x86_64/appstream/debug',
      'content/dist/rhel8/8.9/x86_64/appstream/os',
      'content/dist/rhel8/8.9/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8.9/x86_64/codeready-builder/debug',
      'content/dist/rhel8/8.9/x86_64/codeready-builder/os',
      'content/dist/rhel8/8.9/x86_64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8/aarch64/appstream/debug',
      'content/dist/rhel8/8/aarch64/appstream/os',
      'content/dist/rhel8/8/aarch64/appstream/source/SRPMS',
      'content/dist/rhel8/8/aarch64/codeready-builder/debug',
      'content/dist/rhel8/8/aarch64/codeready-builder/os',
      'content/dist/rhel8/8/aarch64/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8/s390x/appstream/debug',
      'content/dist/rhel8/8/s390x/appstream/os',
      'content/dist/rhel8/8/s390x/appstream/source/SRPMS',
      'content/dist/rhel8/8/s390x/codeready-builder/debug',
      'content/dist/rhel8/8/s390x/codeready-builder/os',
      'content/dist/rhel8/8/s390x/codeready-builder/source/SRPMS',
      'content/dist/rhel8/8/x86_64/appstream/debug',
      'content/dist/rhel8/8/x86_64/appstream/os',
      'content/dist/rhel8/8/x86_64/appstream/source/SRPMS',
      'content/dist/rhel8/8/x86_64/codeready-builder/debug',
      'content/dist/rhel8/8/x86_64/codeready-builder/os',
      'content/dist/rhel8/8/x86_64/codeready-builder/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'aspnetcore-runtime-6.0-6.0.18-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'aspnetcore-runtime-6.0-6.0.18-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'aspnetcore-runtime-6.0-6.0.18-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'aspnetcore-targeting-pack-6.0-6.0.18-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'aspnetcore-targeting-pack-6.0-6.0.18-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'aspnetcore-targeting-pack-6.0-6.0.18-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-apphost-pack-6.0-6.0.18-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-apphost-pack-6.0-6.0.18-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-apphost-pack-6.0-6.0.18-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-hostfxr-6.0-6.0.18-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-hostfxr-6.0-6.0.18-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-hostfxr-6.0-6.0.18-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-runtime-6.0-6.0.18-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-runtime-6.0-6.0.18-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-runtime-6.0-6.0.18-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-sdk-6.0-6.0.118-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-sdk-6.0-6.0.118-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-sdk-6.0-6.0.118-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-sdk-6.0-source-built-artifacts-6.0.118-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-sdk-6.0-source-built-artifacts-6.0.118-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-sdk-6.0-source-built-artifacts-6.0.118-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-targeting-pack-6.0-6.0.18-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-targeting-pack-6.0-6.0.18-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-targeting-pack-6.0-6.0.18-1.el8_8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-templates-6.0-6.0.118-1.el8_8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-templates-6.0-6.0.118-1.el8_8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'dotnet-templates-6.0-6.0.118-1.el8_8', 'cpu':'x86_64', '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 extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'aspnetcore-runtime-6.0 / aspnetcore-targeting-pack-6.0 / etc');
}

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.3

Confidence

High

EPSS

0.01

Percentile

84.0%