Devolutions Server <= 2026.1.22 / 2026.2.0 <= 2026.2.11 Multiple Vulnerabilities (DEVO-2026-0024)

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

include('compat.inc');

if (description)
{
  script_id(334513);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/11");

  script_cve_id(
    "CVE-2026-15058",
    "CVE-2026-15637",
    "CVE-2026-15641",
    "CVE-2026-15642"
  );
  script_xref(name:"IAVB", value:"2026-B-0197");

  script_name(english:"Devolutions Server <= 2026.1.22 / 2026.2.0 <= 2026.2.11 Multiple Vulnerabilities (DEVO-2026-0024)");

  script_set_attribute(attribute:"synopsis", value:
"The Devolutions Server instance installed on the remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Devolutions Server installed on the remote host is prior or equal to 2026.1.22 or 2026.2.0 prior or equal
to 2026.2.11. It is, therefore, affected by multiple vulnerabilities, including:

  - Improper authorization in the access request status endpoint allows an authenticated low-privileged user to approve
    their own pending access request via a direct call to the request status endpoint, bypassing the required approver
    review. (CVE-2026-15641)

  - Improper authorization in the PAM SSH key and certificate retrieval endpoints allows an authenticated low-privileged
    user to disclose the private key of an SSH key or certificate PAM credential via a direct object reference to the
    credential identifier. (CVE-2026-15637)

  - Insertion of sensitive information into a file in the Recovery Kit response file generation feature allows an attacker
    with access to the generated response file to obtain the Azure Key Vault client secret in cleartext, even when the
    option to exclude sensitive data is selected. (CVE-2026-15642)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://devolutions.net/security/advisories/DEVO-2026-0024/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Devolutions Server version 2026.1.23.0 / 2026.2.12.0 or later.");
  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:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-15637");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:devolutions:devolutions_server");
  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("devolutions_server_win_installed.nbin");
  script_require_keys("installed_sw/Devolutions Server");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': 'Devolutions Server', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
        {'fixed_version': '2026.1.23.0'},
        {'min_version': '2026.2.0', 'max_version': '2026.2.11', 'fixed_version': '2026.2.12.0'}
      ]
    }
  ]
};

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