NetScaler ADC and NetScaler Gateway Multiple Vulnerabilities (CTX693420)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(240341);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/11");

  script_cve_id("CVE-2025-5349", "CVE-2025-5777");
  script_xref(name:"IAVA", value:"2025-A-0443");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2025/07/11");

  script_name(english:"NetScaler ADC and NetScaler Gateway Multiple Vulnerabilities (CTX693420)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device may be affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NetScaler ADC (formerly Citrix ADC) or NetScaler Gateway (formerly Citrix Gateway) device is version 12.1 
before 12.1-55.328 (12.1-FIPS) or 13.1 before 13.1-37.235 (13.1-FIPS) or 13.1 before 13.1-58.32 or 14.1 before  
14.1-43.56. It is, therefore, affected by multiple vulnerabilities: 

  - Improper access control on the NetScaler Management Interface in NetScaler ADC and NetScaler Gateway 
    (CVE-2025-5349)
  
  - Insufficient input validation leading to memory overread on the NetScaler Management Interface NetScaler 
    ADC and NetScaler Gateway (CVE-2025-5777) 

Please refer to advisory CTX693420 for more information.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX693420
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?43b55ab5");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 12.1-55.328 (12.1-FIPS),  13.1-37.235 (13.1-FIPS), 13.1-58.32, 14.1-43.56 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:F/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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:A");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-5777");

  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:"2025/06/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/06/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/06/25");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:citrix:netscaler_gateway");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:citrix:netscaler_application_delivery_controller");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("citrix_netscaler_detect.nbin");
  script_require_keys("Host/NetScaler/Detected");

  exit(0);
}

include('vcf_extras_netscaler.inc');

var app_info = vcf::citrix_netscaler::get_app_info();

var constraints;

if (app_info['fips_status'] == 1)
  constraints = [
    {'fips':TRUE, 'min_version': '12.1', 'fixed_version': '12.1.55.328', 'fixed_display': '12.1-55.328 and later releases of 12.1-FIPS.'},
    {'fips':TRUE, 'min_version': '13.1', 'fixed_version': '13.1.37.235', 'fixed_display': '13.1-37.235 and later releases of 13.1-FIPS.'}
  ];
else
  constraints = [
    {'min_version': '13.1', 'fixed_version': '13.1.58.32', 'fixed_display': '13.1-58.32'},
    {'min_version': '14.1', 'fixed_version': '14.1.43.56', 'fixed_display': '14.1-43.56'}
  ];

vcf::citrix_netscaler::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_HOLE
);