Amazon Linux 2023 : aspnetcore-runtime-8.0, aspnetcore-runtime-dbg-8.0, aspnetcore-targeting-pack-8.0 (ALAS2023-2026-2010)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2023 Security Advisory ALAS2023-2026-2010.
##

include('compat.inc');

if (description)
{
  script_id(332043);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/04");

  script_cve_id(
    "CVE-2026-47300",
    "CVE-2026-47302",
    "CVE-2026-47303",
    "CVE-2026-47304",
    "CVE-2026-50524",
    "CVE-2026-50525",
    "CVE-2026-50526",
    "CVE-2026-50527",
    "CVE-2026-50528",
    "CVE-2026-50646",
    "CVE-2026-50648",
    "CVE-2026-50649",
    "CVE-2026-50650",
    "CVE-2026-50651",
    "CVE-2026-56170",
    "CVE-2026-57108"
  );
  script_xref(name:"IAVA", value:"2026-A-0726");

  script_name(english:"Amazon Linux 2023 : aspnetcore-runtime-8.0, aspnetcore-runtime-dbg-8.0, aspnetcore-targeting-pack-8.0 (ALAS2023-2026-2010)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2023 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2010 advisory.

    Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to
    elevate privileges over a network. (CVE-2026-47300)

    Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny
    service over a network. (CVE-2026-47302)

    Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate
    privileges over a network. (CVE-2026-47303)

    Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a
    security feature over a network. (CVE-2026-47304)

    Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to deny
    service over a network. (CVE-2026-50524)

    Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny
    service over a network. (CVE-2026-50525)

    Improper link resolution before file access ('link following') in .NET allows an authorized attacker to
    perform tampering locally. (CVE-2026-50526)

    Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a
    network. (CVE-2026-50527)

    Incorrect authorization in .NET allows an unauthorized attacker to bypass a security feature over a
    network. (CVE-2026-50528)

    Protection mechanism failure in .NET Framework allows an unauthorized attacker to execute code locally.
    (CVE-2026-50646)

    Allocation of resources without limits or throttling in .NET Framework allows an unauthorized attacker to
    deny service over a network. (CVE-2026-50648)

    Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.
    (CVE-2026-50649)

    Improper control of generation of code ('code injection') in .NET Framework allows an unauthorized
    attacker to elevate privileges locally. (CVE-2026-50650)

    Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny
    service over a network. (CVE-2026-50651)

    Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to
    deny service over a network. (CVE-2026-56170)

    Access of resource using incompatible type ('type confusion') in .NET Core allows an unauthorized attacker
    to deny service over a network. (CVE-2026-57108)

Tenable has extracted the preceding description block directly from the tested product 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://alas.aws.amazon.com//AL2023/ALAS2023-2026-2010.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-47300.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-47302.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-47303.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-47304.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50524.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50525.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50526.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50527.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50528.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50646.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50648.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50649.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50650.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-50651.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-56170.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-57108.html");
  script_set_attribute(attribute:"solution", value:
"Run 'dnf update dotnet8.0 --releasever 2023.12.20260803' or
  or 'dnf update --advisory ALAS2023-2026-2010 --releasever 2023.12.20260803' to update your system.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/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-2026-47304");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:aspnetcore-runtime-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:aspnetcore-runtime-dbg-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:aspnetcore-targeting-pack-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-apphost-pack-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-apphost-pack-8.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-host-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-hostfxr-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-hostfxr-8.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-runtime-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-runtime-8.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-runtime-dbg-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-sdk-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-sdk-8.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-sdk-8.0-source-built-artifacts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-sdk-dbg-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-targeting-pack-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet-templates-8.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet8.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:dotnet8.0-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:netstandard-targeting-pack-2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2023");
  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:"Amazon Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include("rpm2.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "-2023")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2023", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var pkgs = [
    {'reference':'aspnetcore-runtime-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'aspnetcore-runtime-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'aspnetcore-runtime-dbg-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'aspnetcore-runtime-dbg-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'aspnetcore-targeting-pack-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'aspnetcore-targeting-pack-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-apphost-pack-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-apphost-pack-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-apphost-pack-8.0-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-apphost-pack-8.0-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-host-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-host-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-host-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-host-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-hostfxr-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-hostfxr-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-hostfxr-8.0-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-hostfxr-8.0-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-runtime-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-runtime-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-runtime-8.0-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-runtime-8.0-debuginfo-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-runtime-dbg-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-runtime-dbg-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-8.0-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-8.0-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-8.0-debuginfo-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-8.0-debuginfo-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-8.0-source-built-artifacts-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-8.0-source-built-artifacts-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-dbg-8.0-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-sdk-dbg-8.0-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-targeting-pack-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-targeting-pack-8.0-8.0.29-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-templates-8.0-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet-templates-8.0-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet8.0-debuginfo-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet8.0-debuginfo-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet8.0-debugsource-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'dotnet8.0-debugsource-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'netstandard-targeting-pack-2.1-8.0.129-1.amzn2023.0.1', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'netstandard-targeting-pack-2.1-8.0.129-1.amzn2023.0.1', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE}
];

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 = 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-8.0 / aspnetcore-runtime-dbg-8.0 / aspnetcore-targeting-pack-8.0 / etc");
}