NewStart CGSL MAIN 7.02 : perl Vulnerability (NS-SA-2026-0098)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2026-0098. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(343554);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/08");

  script_cve_id("CVE-2025-40909");

  script_name(english:"NewStart CGSL MAIN 7.02 : perl Vulnerability (NS-SA-2026-0098)");

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

  - Perl threads have a working directory race condition where file operations may target unintended paths. If
    a directory handle is open at thread creation, the process-wide current working directory is temporarily
    changed in order to clone that handle for the new thread, which is visible from any third (or more) thread
    already running. This may lead to unintended operations such as loading code or accessing files from
    unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit
    11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6 (CVE-2025-40909)

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-2026-0098");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2025-40909");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL perl packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:C/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/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-2025-40909");

  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:"2025/05/30");
  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");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-AutoSplit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-B");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Benchmark");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Class-Struct");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-FindBin");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-I18N-Collate");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-I18N-LangTags");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-I18N-Langinfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-IO");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-IPC-Open3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Locale-Maketext-Simple");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Math-Complex");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-ODBM_File");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Opcode");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-POSIX");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Pod-Functions");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Pod-Html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Safe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Search-Dict");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-SelectSaver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-SelfLoader");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Symbol");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Sys-Hostname");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Term-Complete");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Term-ReadLine");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Text-Abbrev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Thread");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Thread-Semaphore");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Tie");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Tie-File");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Tie-Memoize");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Time");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Time-Piece");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-Unicode-UCD");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-User-pwent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-autouse");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-overloading");
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  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perl-tests");
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  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) 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': [
    'perl-5.36.3-15.zncgsl7.6',
    'perl-Attribute-Handlers-1.02-15.zncgsl7.6',
    'perl-AutoLoader-5.74-15.zncgsl7.6',
    'perl-AutoSplit-5.74-15.zncgsl7.6',
    'perl-B-1.83-15.zncgsl7.6',
    'perl-Benchmark-1.23-15.zncgsl7.6',
    'perl-Class-Struct-0.66-15.zncgsl7.6',
    'perl-Config-Extensions-0.03-15.zncgsl7.6',
    'perl-DBM_Filter-0.06-15.zncgsl7.6',
    'perl-Devel-Peek-1.32-15.zncgsl7.6',
    'perl-Devel-SelfStubber-1.06-15.zncgsl7.6',
    'perl-DirHandle-1.05-15.zncgsl7.6',
    'perl-Dumpvalue-2.27-15.zncgsl7.6',
    'perl-DynaLoader-1.52-15.zncgsl7.6',
    'perl-English-1.11-15.zncgsl7.6',
    'perl-Errno-1.36-15.zncgsl7.6',
    'perl-ExtUtils-Constant-0.25-15.zncgsl7.6',
    'perl-ExtUtils-Embed-1.35-15.zncgsl7.6',
    'perl-ExtUtils-Miniperl-1.11-15.zncgsl7.6',
    'perl-Fcntl-1.15-15.zncgsl7.6',
    'perl-File-Basename-2.85-15.zncgsl7.6',
    'perl-File-Compare-1.100.700-15.zncgsl7.6',
    'perl-File-Copy-2.39-15.zncgsl7.6',
    'perl-File-DosGlob-1.12-15.zncgsl7.6',
    'perl-File-Find-1.40-15.zncgsl7.6',
    'perl-File-stat-1.12-15.zncgsl7.6',
    'perl-FileCache-1.10-15.zncgsl7.6',
    'perl-FileHandle-2.03-15.zncgsl7.6',
    'perl-FindBin-1.53-15.zncgsl7.6',
    'perl-GDBM_File-1.23-15.zncgsl7.6',
    'perl-Getopt-Std-1.13-15.zncgsl7.6',
    'perl-Hash-Util-0.28-15.zncgsl7.6',
    'perl-Hash-Util-FieldHash-1.26-15.zncgsl7.6',
    'perl-I18N-Collate-1.02-15.zncgsl7.6',
    'perl-I18N-LangTags-0.45-15.zncgsl7.6',
    'perl-I18N-Langinfo-0.21-15.zncgsl7.6',
    'perl-IO-1.50-15.zncgsl7.6',
    'perl-IPC-Open3-1.22-15.zncgsl7.6',
    'perl-Locale-Maketext-Simple-0.21-15.zncgsl7.6',
    'perl-Math-Complex-1.59-15.zncgsl7.6',
    'perl-Memoize-1.03-15.zncgsl7.6',
    'perl-Module-Loaded-0.08-15.zncgsl7.6',
    'perl-NDBM_File-1.15-15.zncgsl7.6',
    'perl-NEXT-0.69-15.zncgsl7.6',
    'perl-Net-1.03-15.zncgsl7.6',
    'perl-ODBM_File-1.17-15.zncgsl7.6',
    'perl-Opcode-1.57-15.zncgsl7.6',
    'perl-POSIX-2.03-15.zncgsl7.6',
    'perl-Pod-Functions-1.14-15.zncgsl7.6',
    'perl-Pod-Html-1.33-15.zncgsl7.6',
    'perl-Safe-2.43-15.zncgsl7.6',
    'perl-Search-Dict-1.07-15.zncgsl7.6',
    'perl-SelectSaver-1.02-15.zncgsl7.6',
    'perl-SelfLoader-1.26-15.zncgsl7.6',
    'perl-Symbol-1.09-15.zncgsl7.6',
    'perl-Sys-Hostname-1.24-15.zncgsl7.6',
    'perl-Term-Complete-1.403-15.zncgsl7.6',
    'perl-Term-ReadLine-1.17-15.zncgsl7.6',
    'perl-Test-1.31-15.zncgsl7.6',
    'perl-Text-Abbrev-1.02-15.zncgsl7.6',
    'perl-Thread-3.05-15.zncgsl7.6',
    'perl-Thread-Semaphore-2.13-15.zncgsl7.6',
    'perl-Tie-4.6-15.zncgsl7.6',
    'perl-Tie-File-1.06-15.zncgsl7.6',
    'perl-Tie-Memoize-1.1-15.zncgsl7.6',
    'perl-Time-1.03-15.zncgsl7.6',
    'perl-Time-Piece-1.3401-15.zncgsl7.6',
    'perl-Unicode-UCD-0.78-15.zncgsl7.6',
    'perl-User-pwent-1.03-15.zncgsl7.6',
    'perl-autouse-1.11-15.zncgsl7.6',
    'perl-base-2.27-15.zncgsl7.6',
    'perl-blib-1.07-15.zncgsl7.6',
    'perl-debugger-1.60-15.zncgsl7.6',
    'perl-deprecate-0.04-15.zncgsl7.6',
    'perl-devel-5.36.3-15.zncgsl7.6',
    'perl-diagnostics-1.39-15.zncgsl7.6',
    'perl-doc-5.36.3-15.zncgsl7.6',
    'perl-encoding-warnings-0.13-15.zncgsl7.6',
    'perl-fields-2.27-15.zncgsl7.6',
    'perl-filetest-1.03-15.zncgsl7.6',
    'perl-if-0.61.000-15.zncgsl7.6',
    'perl-interpreter-5.36.3-15.zncgsl7.6',
    'perl-less-0.03-15.zncgsl7.6',
    'perl-lib-0.65-15.zncgsl7.6',
    'perl-libnetcfg-5.36.3-15.zncgsl7.6',
    'perl-libs-5.36.3-15.zncgsl7.6',
    'perl-locale-1.10-15.zncgsl7.6',
    'perl-macros-5.36.3-15.zncgsl7.6',
    'perl-meta-notation-5.36.3-15.zncgsl7.6',
    'perl-mro-1.26-15.zncgsl7.6',
    'perl-open-1.13-15.zncgsl7.6',
    'perl-overload-1.35-15.zncgsl7.6',
    'perl-overloading-0.02-15.zncgsl7.6',
    'perl-ph-5.36.3-15.zncgsl7.6',
    'perl-sigtrap-1.10-15.zncgsl7.6',
    'perl-sort-2.05-15.zncgsl7.6',
    'perl-subs-1.04-15.zncgsl7.6',
    'perl-tests-5.36.3-15.zncgsl7.6',
    'perl-utils-5.36.3-15.zncgsl7.6',
    'perl-vars-1.05-15.zncgsl7.6',
    'perl-vmsish-1.04-15.zncgsl7.6'
  ]
};
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_WARNING,
    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, 'perl');
}