Alibaba Cloud Linux 3 : 0093: edk2 (ALINUX3-SA-2024:0093)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Alibaba Cloud Linux Security Advisory ALINUX3-SA-2024:0093.
##

include('compat.inc');

if (description)
{
  script_id(236197);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/14");

  script_cve_id(
    "CVE-2022-36763",
    "CVE-2022-36764",
    "CVE-2022-36765",
    "CVE-2023-3446",
    "CVE-2023-45229",
    "CVE-2023-45230",
    "CVE-2023-45231",
    "CVE-2023-45232",
    "CVE-2023-45233",
    "CVE-2023-45234",
    "CVE-2023-45235"
  );

  script_name(english:"Alibaba Cloud Linux 3 : 0093: edk2 (ALINUX3-SA-2024:0093)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Alibaba Cloud Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced
in the ALINUX3-SA-2024:0093 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2022-36763:
    EDK2 is susceptible to a vulnerability in the Tcg2MeasureGptTable() function, allowing a user to trigger a
    heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a
    compromise of confidentiality, integrity, and/or availability.

    CVE-2022-36764:
    EDK2 is susceptible to a vulnerability in the Tcg2MeasurePeImage() function, allowing a user to trigger a
    heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a
    compromise of confidentiality, integrity, and/or availability.

    CVE-2022-36765:
    EDK2 is susceptible to a vulnerability in the CreateHob() function, allowing a user to trigger a integer
    overflow to buffer overflow via a local network. Successful exploitation of this vulnerability may result
    in a compromise of confidentiality, integrity, and/or availability.

    CVE-2023-3446:
    Issue summary: Checking excessively long DH keys or parameters may be very slow.
    Impact summary: Applications that use the functions DH_check(), DH_check_ex()
    or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long
    delays. Where the key or parameters that are being checked have been obtained
    from an untrusted source this may lead to a Denial of Service.
    The function DH_check() performs various checks on DH parameters. One of those
    checks confirms that the modulus ('p' parameter) is not too large. Trying to use
    a very large modulus is slow and OpenSSL will not normally use a modulus which
    is over 10,000 bits in length.
    However the DH_check() function checks numerous aspects of the key or parameters
    that have been supplied. Some of those checks use the supplied modulus value
    even if it has already been found to be too large.
    An application that calls DH_check() and supplies a key or parameters obtained
    from an untrusted source could be vulernable to a Denial of Service attack.
    The function DH_check() is itself called by a number of other OpenSSL functions.
    An application calling any of those other functions may similarly be affected.
    The other functions affected by this are DH_check_ex() and
    EVP_PKEY_param_check().
    Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
    when using the '-check' option.
    The OpenSSL SSL/TLS implementation is not affected by this issue.
    The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.

    CVE-2023-45229:
    EDK2's Network Package is susceptible to an out-of-bounds read
    vulnerability when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. This
    vulnerability can be exploited by an attacker to gain unauthorized
    access and potentially lead to a loss of Confidentiality.

    CVE-2023-45230:
    EDK2's Network Package is susceptible to a buffer overflow vulnerability via a long server ID option in
    DHCPv6 client. This
    vulnerability can be exploited by an attacker to gain unauthorized
    access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

    CVE-2023-45231:
    EDK2's Network Package is susceptible to an out-of-bounds read
    vulnerability when processing Neighbor Discovery Redirect message. This
    vulnerability can be exploited by an attacker to gain unauthorized
    access and potentially lead to a loss of Confidentiality.

    CVE-2023-45232:
    EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in
    the Destination Options header of IPv6. This
    vulnerability can be exploited by an attacker to gain unauthorized
    access and potentially lead to a loss of Availability.

    CVE-2023-45233:
    EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the
    Destination Options header of IPv6. This
    vulnerability can be exploited by an attacker to gain unauthorized
    access and potentially lead to a loss of Availability.

    CVE-2023-45234:
    EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers
    option from a DHCPv6 Advertise message. This
    vulnerability can be exploited by an attacker to gain unauthorized
    access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

    CVE-2023-45235:
    EDK2's Network Package is susceptible to a buffer overflow vulnerability when
    handling Server ID option
    from a DHCPv6 proxy Advertise message. This
    vulnerability can be exploited by an attacker to gain unauthorized
    access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux 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:"http://mirrors.aliyun.com/alinux/3/cve/alinux3-sa-20240093.xml");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-45235");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2023-3446");

  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:"2023/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/05/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/05/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:edk2-aarch64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:edk2-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:edk2-ovmf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:edk2-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:edk2-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:edk2-tools-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alibabacloud:alibaba_cloud_linux_3");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Alibaba Cloud Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Alibaba/release", "Host/Alibaba/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/Alibaba/release');
if (isnull(os_release) || 'Alibaba Cloud Linux' >!< os_release) audit(AUDIT_OS_NOT, 'Alibaba Cloud Linux');
var os_ver = pregmatch(pattern: "Alibaba Cloud Linux release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Alibaba Cloud Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^3([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Alibaba Cloud Linux 3.x', 'Alibaba Cloud Linux ' + os_ver);

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

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Alibaba Cloud Linux', cpu);

var pkgs = [
    {'reference':'edk2-aarch64-20220126gitbb1bba3d77-13.0.1.al8', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-debugsource-20220126gitbb1bba3d77-13.0.1.al8', 'cpu':'aarch64', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-debugsource-20220126gitbb1bba3d77-13.0.1.al8', 'cpu':'x86_64', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-ovmf-20220126gitbb1bba3d77-13.0.1.al8', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-tools-20220126gitbb1bba3d77-13.0.1.al8', 'cpu':'aarch64', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-tools-20220126gitbb1bba3d77-13.0.1.al8', 'cpu':'x86_64', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-tools-debuginfo-20220126gitbb1bba3d77-13.0.1.al8', 'cpu':'aarch64', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-tools-debuginfo-20220126gitbb1bba3d77-13.0.1.al8', 'cpu':'x86_64', 'release':'3', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
    {'reference':'edk2-tools-doc-20220126gitbb1bba3d77-13.0.1.al8', 'release':'3', '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 = 'Alibaba Linux ' + 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, 'edk2-aarch64 / edk2-debugsource / edk2-ovmf / edk2-tools / etc');
}