Telerik UI for ASP.NET AJAX 2010.1.309 < 2026.2.708 Multiple RadAsyncUpload Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(351482);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/30");

  script_cve_id(
    "CVE-2026-13181",
    "CVE-2026-13182",
    "CVE-2026-13183",
    "CVE-2026-13184"
  );
  script_xref(name:"IAVA", value:"2026-A-0763");

  script_name(english:"Telerik UI for ASP.NET AJAX 2010.1.309 < 2026.2.708 Multiple RadAsyncUpload 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 2010.1.309 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, RadAsyncUpload client-state processing can distinguish
    decrypt failures from invalid-JSON parse failures, creating an oracle that reveals protected metadata values
    to remote attackers. (CVE-2026-13182)

  - In Progress Telerik UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak
    cryptographic validity through measurable timing differences, enabling remote attackers to recover protected
    metadata values. (CVE-2026-13183)

  - In Progress Telerik UI for AJAX prior to v2026.2.708, when Telerik.Upload.ConfigurationHashKey is absent and
    machineKey is not explicitly configured, upload metadata integrity protection may fall back to a predictable
    default key, enabling attackers to forge protected upload metadata and unlock further exploit chains.
    (CVE-2026-13184)

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-rau-asyncuploadtypename-deserialization-cve-2026-13181
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a9175cc7");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-padding-oracle-cve-2026-13182
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9ea61831");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-timing-oracle-cve-2026-13183
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?74bef554");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-unauth-deserialization-chain-cve-2026-13184
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8032f5ac");
  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-2026-13182");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-13181");

  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': '2010.1.309', '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);