Telerik UI for ASP.NET AJAX 2011.2.712 < 2026.2.708 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(351484);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/30");

  script_cve_id(
    "CVE-2026-13187",
    "CVE-2026-13188",
    "CVE-2026-13189",
    "CVE-2026-13190"
  );
  script_xref(name:"IAVA", value:"2026-A-0763");

  script_name(english:"Telerik UI for ASP.NET AJAX 2011.2.712 < 2026.2.708 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a web application development framework that is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Progress Telerik UI for ASP.NET AJAX installed on the remote Windows host is 2011.2.712 or later and
prior to 2026.2.708. It is, therefore, affected by multiple vulnerabilities:

  - In Progress Telerik UI for AJAX prior to v2026.2.708, insufficient validation of the language parameter in the
    spell check handler may allow an attacker to influence server-side file path resolution and trigger unintended
    server-side requests. (CVE-2026-13189)

  - In Progress Telerik UI for AJAX prior to v2026.2.708, DialogHandler provider type input may be tampered with,
    potentially altering dialog processing and enabling chained exploitation. (CVE-2026-13187)

  - In Progress Telerik UI for AJAX prior to v2026.2.708, a deserialization vulnerability in the persistence
    utilities allows unsafe type instantiation from attacker-influenced persisted state, which can lead to remote
    code execution. (CVE-2026-13190)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-provider-type-tampering-cve-2026-13187
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?084c2149");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-parameters-tampering-cve-2026-13188
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f8068305");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-spellchecker-dictionarylanguage-path-traversal-cve-2026-13189
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?19e53345");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-persistence-framework-unsafe-type-resolution-cve-2026-13190
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0a95601e");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Progress Telerik UI for ASP.NET AJAX version 2026.2.708 (2026 Q2 SP1) or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-13189");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-13187");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/30");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:telerik:ui_for_asp.net_ajax");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("telerik_ui_for_aspnet_ajax_installed.nbin");
  script_require_keys("installed_sw/Telerik UI for ASP.NET AJAX", "Settings/ParanoidReport");

  exit(0);
}

include('vdf.inc');

# The advisories document configuration preconditions and workarounds that cannot be checked.
if (report_paranoia < 2) audit(AUDIT_PARANOID);

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': 'Telerik UI for ASP.NET AJAX', 'type': 'app'},
      'check_algorithm': 'default',
      'potential_vulnerability': {
        'missing_config_check': true
      },
      'requires': [
        {'scope': 'target', 'match': {'paranoia': true}}
      ],
      'constraints': [
        {'min_version': '2011.2.712', 'fixed_version': '2026.2.708'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_HOLE);
vdf::handle_check_and_report_errors(vdf_result:result);