JetBrains Rider < 2026.2.1 Unverified Skill Auto-Update

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

include('compat.inc');

if (description)
{
  script_id(362478);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/02");

  script_cve_id("CVE-2026-100265");
  script_xref(name:"IAVA", value:"2026-A-1064");

  script_name(english:"JetBrains Rider < 2026.2.1 Unverified Skill Auto-Update");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of JetBrains Rider installed on the remote host is prior to 2026.2.1. It is, therefore, affected by a
vulnerability:

  - In JetBrains Rider before 2026.2.1 AI Assistant could auto-update third-party skills without user
    confirmation. (CVE-2026-100265)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.jetbrains.com/privacy-security/issues-fixed/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to JetBrains Rider version 2026.2.1 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-100265");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:jetbrains:rider");
  script_set_attribute(attribute:"stig_severity", value:"II");
  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("jetbrains_rider_win_installed.nbin");
  script_require_keys("installed_sw/JetBrains Rider", "SMB/Registry/Enumerated");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'JetBrains Rider', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
        {'fixed_version': '2026.2.1'}
      ]
    }
  ]
};

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