NewStart CGSL MAIN 7.02 : samba Multiple Vulnerabilities (NS-SA-2026-0095)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2026-0095. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(343594);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/08");

  script_cve_id(
    "CVE-2025-9640",
    "CVE-2025-10230",
    "CVE-2026-2340",
    "CVE-2026-3012",
    "CVE-2026-3238",
    "CVE-2026-4408",
    "CVE-2026-4480"
  );
  script_xref(name:"IAVA", value:"2025-A-0777-S");
  script_xref(name:"IAVA", value:"2026-A-0510-S");

  script_name(english:"NewStart CGSL MAIN 7.02 : samba Multiple Vulnerabilities (NS-SA-2026-0095)");

  script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 7.02, has samba packages installed that are affected by multiple
vulnerabilities:

  - A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description
    string to the command configured with the print command setting via the %J substitution character
    without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a
    specially crafted print job description that contains unescaped shell characters. This could lead to
    remote code execution on the affected system. (CVE-2026-4480)

  - A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names from registration packets
    are passed to a shell without proper validation or escaping. Unsanitized NetBIOS name data from WINS
    registration packets are inserted into a shell command and executed by the Samba Active Directory Domain
    Controller's wins hook, allowing an unauthenticated network attacker to achieve remote command execution
    as the Samba process. (CVE-2025-10230)

  - A flaw was found in Samba, in the vfs_streams_xattr module, where uninitialized heap memory could be
    written into alternate data streams. This allows an authenticated user to read residual memory content
    that may include sensitive data, resulting in an information disclosure vulnerability. (CVE-2025-9640)

  - A flaw was found in Samba's vfs_worm module. The module is intended to provide write-once, read-many
    (WORM) protections by preventing modification of files after a configurable grace period. Due to
    insufficient validation during rename operations, an authenticated user with write access to a share could
    overwrite a protected file by renaming a newly created file over the existing WORM-protected file.
    (CVE-2026-2340)

  - A flaw was found in Samba's certificate auto-enrollment Group Policy handling. When certificate auto-
    enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install
    it into the local trust store without proper verification. An attacker with the ability to intercept or
    redirect network traffic could exploit this behavior to supply a malicious certificate authority
    certificate, potentially allowing interception or spoofing of trusted communications. (CVE-2026-3012)

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://security.gd-linux.com/notice/NS-SA-2026-0095");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2025-10230");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2025-9640");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2026-2340");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2026-3012");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2026-3238");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2026-4408");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2026-4480");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL samba packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  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: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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-4480");

  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:"2025/10/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:ctdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libnetapi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libnetapi-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libsmbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libsmbclient-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libwbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:libwbclient-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python3-samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python3-samba-dc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python3-samba-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python3-samba-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-client-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-common-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-common-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-dc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-dc-bind-dlz");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-dc-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-dc-provision");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-dcerpc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-gpupdate");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-krb5-printing");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-ldb-ldap-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-pidl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-test-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-usershares");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-vfs-glusterfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-vfs-iouring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-winbind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-winbind-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-winbind-krb5-locator");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:samba-winbind-modules");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:7");
  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:"NewStart CGSL 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_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/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_release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(os_release) || os_release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');

if (os_release !~ "CGSL\sMAIN\s7\.02")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 7.02');

if (!get_kb_item('Host/ZTE-CGSL/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'NewStart Carrier Grade Server Linux', cpu);

var flag = 0;

var pkgs = {
  'CGSL MAIN 7.02': [
    'ctdb-4.19.5-7.zncgsl7.1',
    'libnetapi-4.19.5-7.zncgsl7.1',
    'libnetapi-devel-4.19.5-7.zncgsl7.1',
    'libsmbclient-4.19.5-7.zncgsl7.1',
    'libsmbclient-devel-4.19.5-7.zncgsl7.1',
    'libwbclient-4.19.5-7.zncgsl7.1',
    'libwbclient-devel-4.19.5-7.zncgsl7.1',
    'python3-samba-4.19.5-7.zncgsl7.1',
    'python3-samba-dc-4.19.5-7.zncgsl7.1',
    'python3-samba-devel-4.19.5-7.zncgsl7.1',
    'python3-samba-test-4.19.5-7.zncgsl7.1',
    'samba-4.19.5-7.zncgsl7.1',
    'samba-client-4.19.5-7.zncgsl7.1',
    'samba-client-libs-4.19.5-7.zncgsl7.1',
    'samba-common-4.19.5-7.zncgsl7.1',
    'samba-common-libs-4.19.5-7.zncgsl7.1',
    'samba-common-tools-4.19.5-7.zncgsl7.1',
    'samba-dc-4.19.5-7.zncgsl7.1',
    'samba-dc-bind-dlz-4.19.5-7.zncgsl7.1',
    'samba-dc-libs-4.19.5-7.zncgsl7.1',
    'samba-dc-provision-4.19.5-7.zncgsl7.1',
    'samba-dcerpc-4.19.5-7.zncgsl7.1',
    'samba-devel-4.19.5-7.zncgsl7.1',
    'samba-gpupdate-4.19.5-7.zncgsl7.1',
    'samba-krb5-printing-4.19.5-7.zncgsl7.1',
    'samba-ldb-ldap-modules-4.19.5-7.zncgsl7.1',
    'samba-libs-4.19.5-7.zncgsl7.1',
    'samba-pidl-4.19.5-7.zncgsl7.1',
    'samba-test-4.19.5-7.zncgsl7.1',
    'samba-test-libs-4.19.5-7.zncgsl7.1',
    'samba-tools-4.19.5-7.zncgsl7.1',
    'samba-usershares-4.19.5-7.zncgsl7.1',
    'samba-vfs-glusterfs-4.19.5-7.zncgsl7.1',
    'samba-vfs-iouring-4.19.5-7.zncgsl7.1',
    'samba-winbind-4.19.5-7.zncgsl7.1',
    'samba-winbind-clients-4.19.5-7.zncgsl7.1',
    'samba-winbind-krb5-locator-4.19.5-7.zncgsl7.1',
    'samba-winbind-modules-4.19.5-7.zncgsl7.1'
  ]
};
var pkg_list = pkgs[os_release];
var pkg;
foreach (pkg in pkg_list)
  if (rpm_check(reference:pkg, release:'ZTE ' + os_release, rpm_spec_vers_cmp:TRUE)) 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, 'samba');
}