NewStart CGSL MAIN 6.06 : samba Multiple Vulnerabilities (NS-SA-2025-0208)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0208. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(266281);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/30");

  script_cve_id(
    "CVE-2007-2444",
    "CVE-2008-3789",
    "CVE-2008-4314",
    "CVE-2010-0728",
    "CVE-2016-2124",
    "CVE-2020-25717",
    "CVE-2021-20254",
    "CVE-2021-23192",
    "CVE-2021-44142"
  );

  script_name(english:"NewStart CGSL MAIN 6.06 : samba Multiple Vulnerabilities (NS-SA-2025-0208)");

  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 6.06, has samba packages installed that are affected by multiple
vulnerabilities:

  - The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide ...enhanced compatibility
    with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver. Samba versions prior to
    4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via
    specially crafted extended file attributes. A remote attacker with write access to extended file
    attributes can execute arbitrary code with the privileges of smbd, typically root. (CVE-2021-44142)

  - Logic error in the SID/Name translation functionality in smbd in Samba 3.0.23d through 3.0.25pre2 allows
    local users to gain temporary privileges and execute SMB/CIFS protocol operations via unspecified vectors
    that cause the daemon to transition to the root user. (CVE-2007-2444)

  - Samba 3.2.0 uses weak permissions (0666) for the (1) group_mapping.tdb and (2) group_mapping.ldb files,
    which allows local users to modify the membership of Unix groups. (CVE-2008-3789)

  - smbd in Samba 3.0.29 through 3.2.4 might allow remote attackers to read arbitrary memory and cause a
    denial of service via crafted (1) trans, (2) trans2, and (3) nttrans requests, related to a cut&paste
    error that causes an improper bounds check to be performed. (CVE-2008-4314)

  - smbd in Samba 3.3.11, 3.4.6, and 3.5.0, when libcap support is enabled, runs with the CAP_DAC_OVERRIDE
    capability, which allows remote authenticated users to bypass intended file permissions via standard
    filesystem operations with any client. (CVE-2010-0728)

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-2025-0208");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2007-2444");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2008-3789");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2008-4314");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2010-0728");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2016-2124");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2020-25717");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-20254");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-23192");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2021-44142");
  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:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-44142");

  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:"2007/05/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/09/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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:libwbclient");
  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-libs");
  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:6");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL 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_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\s6\.06")
  audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.06');

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 6.06': [
    'libsmbclient-4.15.5-10.0.1.zncgsl6_6',
    'libwbclient-4.15.5-10.0.1.zncgsl6_6',
    'samba-client-4.15.5-10.0.1.zncgsl6_6',
    'samba-client-libs-4.15.5-10.0.1.zncgsl6_6',
    'samba-common-4.15.5-10.0.1.zncgsl6_6',
    'samba-common-libs-4.15.5-10.0.1.zncgsl6_6',
    'samba-libs-4.15.5-10.0.1.zncgsl6_6',
    'samba-winbind-modules-4.15.5-10.0.1.zncgsl6_6'
  ]
};
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');
}