NewStart CGSL MAIN 7.02 : emacs Multiple Vulnerabilities (NS-SA-2025-0115)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2025-0115. The text
# itself is copyright (C) ZTE, Inc.
##

include('compat.inc');

if (description)
{
  script_id(242832);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/25");

  script_cve_id(
    "CVE-2022-45939",
    "CVE-2022-48337",
    "CVE-2022-48338",
    "CVE-2022-48339",
    "CVE-2023-27985",
    "CVE-2024-30202",
    "CVE-2024-30203",
    "CVE-2024-30204",
    "CVE-2024-30205",
    "CVE-2024-39331",
    "CVE-2024-53920",
    "CVE-2025-1244"
  );

  script_name(english:"NewStart CGSL MAIN 7.02 : emacs Multiple Vulnerabilities (NS-SA-2025-0115)");

  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 emacs packages installed that are affected by multiple
vulnerabilities:

  - GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a
    source-code file, because lib-src/etags.c uses the system C library function in its implementation of the
    etags program. For example, a victim may use the etags -u * command (suggested in the etags
    documentation) in a situation where the current working directory has contents that depend on untrusted
    input. (CVE-2022-48337)

  - GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a
    source-code file, because lib-src/etags.c uses the system C library function in its implementation of the
    ctags program. For example, a victim may use the ctags * command (suggested in the ctags documentation)
    in a situation where the current working directory has contents that depend on untrusted input.
    (CVE-2022-45939)

  - An issue was discovered in GNU Emacs through 28.2. In ruby-mode.el, the ruby-find-library-file function
    has a local command injection vulnerability. The ruby-find-library-file function is an interactive
    function, and bound to C-c C-f. Inside the function, the external command gem is called through shell-
    command-to-string, but the feature-name parameters are not escaped. Thus, malicious Ruby source files may
    cause commands to be executed. (CVE-2022-48338)

  - An issue was discovered in GNU Emacs through 28.2. htmlfontify.el has a command injection vulnerability.
    In the hfy-istext-command function, the parameter file and parameter srcdir come from external input, and
    parameters are not escaped. If a file name or directory name contains shell metacharacters, code may be
    executed. (CVE-2022-48339)

  - emacsclient-mail.desktop in Emacs 28.1 through 28.2 is vulnerable to shell command injections through a
    crafted mailto: URI. This is related to lack of compliance with the Desktop Entry Specification. It is
    fixed in 29.0.90 (CVE-2023-27985)

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-2025-0115");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2022-45939");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2022-48337");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2022-48338");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2022-48339");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2023-27985");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-30202");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-30203");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-30204");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-30205");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-39331");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2024-53920");
  script_set_attribute(attribute:"see_also", value:"https://security.gd-linux.com/info/CVE-2025-1244");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL emacs 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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-48337");

  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:"2022/11/28");
  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:emacs-filesystem");
  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': [
    'emacs-filesystem-29.4-3.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, 'emacs');
}