EulerOS 2.0 SP12 : python3 (EulerOS-SA-2025-2370)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(274920);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/30");

  script_cve_id(
    "CVE-2025-4138",
    "CVE-2025-4330",
    "CVE-2025-4435",
    "CVE-2025-4517",
    "CVE-2025-8194"
  );
  script_xref(name:"IAVA", value:"2026-A-0142-S");

  script_name(english:"EulerOS 2.0 SP12 : python3 (EulerOS-SA-2025-2370)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the python3 packages installed, the EulerOS installation on the remote host is affected by
the following vulnerabilities :

    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 'data'or
    '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 'data'or
    '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-2025-4138)

    There is a defect in the CPython tarfile module affecting the TarFile extraction and entry
    enumeration APIs. The tar implementation would process tar archives with negative offsets without error,
    resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives.

    This vulnerability can be mitigated by including the following patch after importing the tarfile
    module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1(CVE-2025-8194)

    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 'data'or
    '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)

    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-2025-4435)

Tenable has extracted the preceding description block directly from the EulerOS python3 security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2025-2370
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b887ee6c");
  script_set_attribute(attribute:"solution", value:
"Update the affected python3 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: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:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-4517");

  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:"2025/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/11/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-fgo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-unversioned-command");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  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:"Huawei 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_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("rpm.inc");

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

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (_release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP12");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(12)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP12");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP12", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "python3-3.9.9-21.h19.eulerosv2r12",
  "python3-fgo-3.9.9-21.h19.eulerosv2r12",
  "python3-unversioned-command-3.9.9-21.h19.eulerosv2r12"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"12", reference:pkg)) 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");
}