Telerik UI for ASP.NET AJAX < 2026.2.708 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(330092);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/29");

  script_cve_id("CVE-2026-13185", "CVE-2026-13186", "CVE-2026-13192");
  script_xref(name:"IAVA", value:"2026-A-0763");

  script_name(english:"Telerik UI for ASP.NET AJAX < 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 Telerik UI for ASP.NET AJAX installed on the remote Windows host is prior to 2026.2.708. It is,
therefore, affected by multiple vulnerabilities:

  - In Progress Telerik UI for AJAX prior to v2026.2.708, applications using cookie-based storage in
    RadPersistenceManager or RadDockLayout deserialize attacker-controlled cookie content, allowing
    unauthenticated remote code execution. (CVE-2026-13185)

  - In Progress Telerik UI for AJAX prior to v2026.2.708, a path traversal vulnerability in the file-based
    persistence storage provider can be exploited when the storage key is derived from user-controlled input,
    enabling attacker-controlled deserialization and remote code execution. (CVE-2026-13186)

  - In Progress Telerik UI for AJAX prior to v2026.2.708, insufficient validation of content submitted to the
    RadEditor PDF export feature may allow an authenticated attacker to trigger server-side requests to arbitrary
    hosts, resulting in outbound network connections and potential exposure of Windows authentication credentials.
    (CVE-2026-13192)

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-persistence-cookie-deserialization-cve-2026-13185
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e6a383d5");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-radeditor-pdf-export-ssrf-cve-2026-13192
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5487e08b");
  # https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-appdata-path-traversal-deserialization-cve-2026-13186
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4dc2b878");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Telerik UI for ASP.NET AJAX version 2026.2.708 or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/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:H/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-2026-13185");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-13186");

  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:"2026/07/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/27");

  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:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  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('vcf.inc');

# We can't check for workarounds
if (report_paranoia < 2) audit(AUDIT_PARANOID);

get_kb_item_or_exit('SMB/Registry/Enumerated');

var app_info = vcf::get_app_info(app:'Telerik UI for ASP.NET AJAX', win_local:TRUE);

var constraints = [
  { 'min_version' : '2013.1.220', 'fixed_version' : '2026.2.708' }
];

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