Coder < 2.29.7 / 2.30.x < 2.30.2 Workspace Auto-Creation Without Consent (CVE-2026-44454)

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

include('compat.inc');

if (description)
{
  script_id(326279);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/13");

  script_cve_id("CVE-2026-44454");
  script_xref(name:"IAVB", value:"2026-B-0188");

  script_name(english:"Coder < 2.29.7 / 2.30.x < 2.30.2 Workspace Auto-Creation Without Consent (CVE-2026-44454)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an application installed that is affected by a command injection vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Coder installed on the remote host is prior to 2.29.7 or 2.30.x prior to 2.30.2. It is, therefore,
affected by a command injection vulnerability.

The dotfiles registry module passed unsanitized user input to shell commands, enabling arbitrary code execution inside
provisioned workspaces. A crafted dotfiles_uri value containing shell command substitution could achieve command
execution. The mode=auto deep links amplified this into a one-click attack by prefilling param.dotfiles_uri and
silently provisioning a workspace with no user confirmation.

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://github.com/coder/coder/security/advisories/GHSA-m3cr-vc2j-pm27");
  script_set_attribute(attribute:"solution", value:
"Update Coder to version 2.29.7 or 2.30.2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/PR:N/UI:R/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-2026-44454");

  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:"2026/06/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/10");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:coder:coder");
  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:"Misc.");

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

  script_dependencies("coder_win_installed.nbin");
  script_require_keys("installed_sw/Coder");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Coder', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'fixed_version': '2.29.7'},
        {'min_version': '2.30.0', 'fixed_version': '2.30.2'}
      ]
    }
  ]
};

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