AlmaLinux 9 : .NET 6.0 (ALSA-2024:7867)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# AlmaLinux Security Advisory ALSA-2024:7867.
##

include('compat.inc');

if (description)
{
  script_id(208766);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/11/15");

  script_cve_id("CVE-2024-43483", "CVE-2024-43484", "CVE-2024-43485");
  script_xref(name:"ALSA", value:"2024:7867");
  script_xref(name:"IAVA", value:"2024-A-0625-S");

  script_name(english:"AlmaLinux 9 : .NET 6.0 (ALSA-2024:7867)");

  script_set_attribute(attribute:"synopsis", value:
"The remote AlmaLinux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ALSA-2024:7867 advisory.

    * dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484)
    * dotnet: Denial of Service in System.Text.Json (CVE-2024-43485)
    * dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and
    other related information, refer to the CVE page(s) listed in the References section.Security Fix(es):

    * dotnet: System.IO.Packaging - Multiple DoS vectors in use of SortedList (CVE-2024-43484)
    * dotnet: Multiple .NET components susceptible to hash flooding (CVE-2024-43483)
    * dotnet: Denial of Service in System.Text.Json (CVE-2024-43485)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

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://errata.almalinux.org/9/ALSA-2024-7867.html");
  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:N/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:L/PR:N/UI:N/S:U/C:N/I:N/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-2024-43485");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(407, 789);

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/10/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/10/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/10/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:aspnetcore-runtime-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:aspnetcore-targeting-pack-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:dotnet-apphost-pack-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:dotnet-hostfxr-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:dotnet-runtime-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:dotnet-sdk-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:dotnet-sdk-6.0-source-built-artifacts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:dotnet-targeting-pack-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:dotnet-templates-6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::appstream");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::baseos");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::crb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::highavailability");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::nfv");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::realtime");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::resilientstorage");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap_hana");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::supplementary");
  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:"Alma Linux Local Security Checks");

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

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/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/AlmaLinux/release');
if (isnull(os_release) || 'AlmaLinux' >!< os_release) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_ver = pregmatch(pattern: "AlmaLinux release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
os_ver = os_ver[1];
if (! preg(pattern:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'AlmaLinux 9.x', 'AlmaLinux ' + os_ver);

if (!get_kb_item('Host/AlmaLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'ppc' >!< cpu && 's390' >!< cpu && 'x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);

var pkgs = [
    {'reference':'aspnetcore-runtime-6.0-6.0.35-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'aspnetcore-runtime-6.0-6.0.35-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'aspnetcore-runtime-6.0-6.0.35-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'aspnetcore-targeting-pack-6.0-6.0.35-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'aspnetcore-targeting-pack-6.0-6.0.35-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'aspnetcore-targeting-pack-6.0-6.0.35-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-apphost-pack-6.0-6.0.35-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-apphost-pack-6.0-6.0.35-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-apphost-pack-6.0-6.0.35-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-hostfxr-6.0-6.0.35-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-hostfxr-6.0-6.0.35-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-hostfxr-6.0-6.0.35-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-runtime-6.0-6.0.35-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-runtime-6.0-6.0.35-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-runtime-6.0-6.0.35-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-sdk-6.0-6.0.135-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-sdk-6.0-6.0.135-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-sdk-6.0-6.0.135-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-sdk-6.0-source-built-artifacts-6.0.135-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-sdk-6.0-source-built-artifacts-6.0.135-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-sdk-6.0-source-built-artifacts-6.0.135-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-targeting-pack-6.0-6.0.35-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-targeting-pack-6.0-6.0.35-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-targeting-pack-6.0-6.0.35-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-templates-6.0-6.0.135-1.el9_4', 'cpu':'aarch64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-templates-6.0-6.0.135-1.el9_4', 'cpu':'s390x', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'dotnet-templates-6.0-6.0.135-1.el9_4', 'cpu':'x86_64', 'release':'9', 'el_string':'el9_4', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
];

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;
  var cves = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'Alma-' + 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 (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  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, cves:cves)) 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, 'aspnetcore-runtime-6.0 / aspnetcore-targeting-pack-6.0 / etc');
}