NewStart CGSL MAIN 7.02 : samba Multiple Vulnerabilities (NS-SA-2025-0133)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0133. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(242780);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/25");

  script_cve_id(
    "CVE-2018-14628",
    "CVE-2022-2127",
    "CVE-2023-3347",
    "CVE-2023-3961",
    "CVE-2023-4091",
    "CVE-2023-4154",
    "CVE-2023-34966",
    "CVE-2023-34967",
    "CVE-2023-34968",
    "CVE-2023-42669",
    "CVE-2023-42670"
  );

  script_name(english:"NewStart CGSL MAIN 7.02 : samba Multiple Vulnerabilities (NS-SA-2025-0133)");

  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 path traversal vulnerability was identified in Samba when processing client pipe names connecting to
    Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients
    to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand.
    However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe
    name containing Unix directory traversal characters (../). This could result in SMB clients connecting as
    root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe
    name resolving to an external service using an existing Unix domain socket, it could potentially lead to
    unauthorized access to the service and consequential adverse events, including compromise or service
    crashes. (CVE-2023-3961)

  - An information leak vulnerability was discovered in Samba's LDAP server. Due to missing access control
    checks, an authenticated but unprivileged attacker could discover the names and preserved attributes of
    deleted objects in the LDAP store. (CVE-2018-14628)

  - An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in
    winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic
    challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan
    manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can
    trigger an out-of-bounds read in Winbind, possibly resulting in a crash. (CVE-2022-2127)

  - A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not
    enforced if an admin configured server signing = required or for SMB2 connections to Domain Controllers
    where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-
    the-middle attack, by intercepting the network traffic and modifying the SMB2 messages between client and
    server, affecting the integrity of the data. (CVE-2023-3347)

  - An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing
    Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not
    validate a field in the network packet that contains the count of elements in an array-like structure. By
    passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This
    flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a
    denial of service condition. (CVE-2023-34966)

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-2025-0133");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2018-14628");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2022-2127");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-3347");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-34966");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-34967");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-34968");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-3961");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-4091");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-4154");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-42669");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-42670");
  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-2023-3961");

  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:"2023/01/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/07/25");

  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:7");
  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\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': [
    'libsmbclient-4.19.5-2.zncgsl7.4',
    'libwbclient-4.19.5-2.zncgsl7.4',
    'samba-client-4.19.5-2.zncgsl7.4',
    'samba-client-libs-4.19.5-2.zncgsl7.4',
    'samba-common-4.19.5-2.zncgsl7.4',
    'samba-common-libs-4.19.5-2.zncgsl7.4',
    'samba-libs-4.19.5-2.zncgsl7.4',
    'samba-winbind-modules-4.19.5-2.zncgsl7.4'
  ]
};
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');
}