NewStart CGSL MAIN 6.06 : coreutils Multiple Vulnerabilities (NS-SA-2025-0228)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0228. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(266248);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/30");

  script_cve_id(
    "CVE-2015-4041",
    "CVE-2015-4042",
    "CVE-2017-7476",
    "CVE-2017-18018",
    "CVE-2018-17942"
  );

  script_name(english:"NewStart CGSL MAIN 6.06 : coreutils Multiple Vulnerabilities (NS-SA-2025-0228)");

  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 coreutils packages installed that are affected by multiple
vulnerabilities:

  - Gnulib before 2017-04-26 has a heap-based buffer overflow with the TZ environment variable. The error is
    in the save_abbr function in time_rz.c. (CVE-2017-7476)

  - The keycompare_mb function in sort.c in sort in GNU Coreutils through 8.23 on 64-bit platforms performs a
    size calculation without considering the number of bytes occupied by multibyte characters, which allows
    attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have
    unspecified other impact via long UTF-8 strings. (CVE-2015-4041)

  - Integer overflow in the keycompare_mb function in sort.c in sort in GNU Coreutils through 8.23 might allow
    attackers to cause a denial of service (application crash) or possibly have unspecified other impact via
    long strings. (CVE-2015-4042)

  - In GNU Coreutils through 8.29, chown-core.c in chown and chgrp does not prevent replacement of a plain
    file with a symlink during use of the POSIX -R -L options, which allows local users to modify the
    ownership of arbitrary files by leveraging a race condition. (CVE-2017-18018)

  - The convert_to_decimal function in vasnprintf.c in Gnulib before 2018-09-23 has a heap-based buffer
    overflow because memory is not allocated for a trailing '\0' character during %f processing.
    (CVE-2018-17942)

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-2025-0228");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2015-4041");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2015-4042");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2017-18018");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2017-7476");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2018-17942");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL coreutils 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:P/I:P/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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-7476");

  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:"2015/05/15");
  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:coreutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:coreutils-common");
  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': [
    'coreutils-8.30-12.zncgsl6.t1.0',
    'coreutils-common-8.30-12.zncgsl6.t1.0'
  ]
};
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, 'coreutils');
}