TencentOS Server 4: python3.12 (TSSA-2025:0625)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2025:0625.
##

include('compat.inc');

if (description)
{
  script_id(276097);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/11");

  script_cve_id(
    "CVE-2024-12718",
    "CVE-2025-4138",
    "CVE-2025-4330",
    "CVE-2025-4435",
    "CVE-2025-4517",
    "CVE-2025-6069"
  );

  script_name(english:"TencentOS Server 4: python3.12 (TSSA-2025:0625)");

  script_set_attribute(attribute:"synopsis", value:
"The remote TencentOS Server 4 host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is,
therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0625 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2024-12718:
    Allows modifying some file metadata (e.g. last modified) with filter=dataor file permissions (chmod)
    with filter=tarof files outside the extraction directory.
    You are affected by this vulnerability if using the tarfilemodule to extract untrusted tar archives
    using TarFile.extractall()or TarFile.extract()using the filter=parameter with a value of dataor
    tar. See the tarfile  extraction filters documentation
    https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information. Only
    Python versions 3.12 or later are affected by these vulnerabilities, earlier versions don't include the
    extraction filter feature.

    Note that for Python 3.14 or later the default value of filter=changed from no filtering to `data,
    so if you are relying on this new default behavior then your usage is also affected.

    Note that none of these vulnerabilities significantly affect the installation of source distributions
    which are tar archives as source distributions already allow arbitrary code execution during the build
    process. However when evaluating source distributions it's important to avoid installing source
    distributions with suspicious links.

    CVE-2025-4138:
    Allows the extraction filter to be ignored, allowing symlink targets to point outside the destination
    directory, and the modification of some file metadata.


    You are affected by this vulnerability if using the tarfilemodule to extract untrusted tar archives
    using TarFile.extractall()or TarFile.extract()using the filter=parameter with a value of dataor
    tar. See the tarfile  extraction filters documentation
    https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information.

    Note that for Python 3.14 or later the default value of filter=changed from no filtering to `data,
    so if you are relying on this new default behavior then your usage is also affected.

    Note that none of these vulnerabilities significantly affect the installation of source distributions
    which are tar archives as source distributions already allow arbitrary code execution during the build
    process. However when evaluating source distributions it's important to avoid installing source
    distributions with suspicious links.

    CVE-2025-4330:
    Allows the extraction filter to be ignored, allowing symlink targets to point outside the destination
    directory, and the modification of some file metadata.


    You are affected by this vulnerability if using the tarfilemodule to extract untrusted tar archives
    using TarFile.extractall()or TarFile.extract()using the filter=parameter with a value of dataor
    tar. See the tarfile  extraction filters documentation
    https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information.

    Note that for Python 3.14 or later the default value of filter=changed from no filtering to `data,
    so if you are relying on this new default behavior then your usage is also affected.

    Note that none of these vulnerabilities significantly affect the installation of source distributions
    which are tar archives as source distributions already allow arbitrary code execution during the build
    process. However when evaluating source distributions it's important to avoid installing source
    distributions with suspicious links.

    CVE-2025-4517:
    Allows arbitrary filesystem writes outside the extraction directory during extraction with filter=data.


    You are affected by this vulnerability if using the tarfilemodule to extract untrusted tar archives
    using TarFile.extractall()or TarFile.extract()using the filter=parameter with a value of dataor
    tar. See the tarfile  extraction filters documentation
    https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information.

    Note that for Python 3.14 or later the default value of filter=changed from no filtering to `data,
    so if you are relying on this new default behavior then your usage is also affected.

    Note that none of these vulnerabilities significantly affect the installation of source distributions
    which are tar archives as source distributions already allow arbitrary code execution during the build
    process. However when evaluating source distributions it's important to avoid installing source
    distributions with suspicious links.

    CVE-2025-4435:
    When using a TarFile.errorlevel = 0and extracting with a filter the documented behavior is that any
    filtered members would be skipped and not extracted. However the actual behavior of TarFile.errorlevel =
    0in affected versions is that the member would still be extracted and not skipped.

    CVE-2025-6069:
    The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted
    malformed inputs potentially leading to amplified denial-of-service.

Tenable has extracted the preceding description block directly from the Tencent 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:"https://mirrors.tencent.com/tlinux/errata/tssa-20250625.xml");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:L");
  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:H/SI:H/SA:H");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-4517");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2024-12718");

  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:"2025/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:tencent:tencentos_server:4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:python3.12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/etc/os-release", "Host/TencentOS/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'TencentOS' >!< os_product) audit(AUDIT_OS_NOT, 'TencentOS');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'TencentOS');
if (! preg(pattern:"^4([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'TencentOS 4.x', 'TencentOS ' + os_version);

if (!get_kb_item('Host/TencentOS/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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'TencentOS', cpu);

var constraints = [
  {
    'release': '4',
    'pkgs': [
      {'reference':'python3.12-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-debug-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-debug-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-debuginfo-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-debuginfo-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-debugsource-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-debugsource-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-devel-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-devel-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-idle-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-idle-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-libs-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-libs-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-test-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-test-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-tkinter-3.12.2-15.oc9', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3.12-tkinter-3.12.2-15.oc9', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    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 &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(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, 'python3.12 / python3.12-debug / python3.12-debuginfo / etc');
}