PaperCut NG 21.2 < 21.2.12 / 22.x < 22.1.1 Path Traversal

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

include('compat.inc');

if (description)
{
  script_id(244063);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/08/06");

  script_cve_id("CVE-2023-31046");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2025/08/18");

  script_name(english:"PaperCut NG 21.2 < 21.2.12 / 22.x < 22.1.1 Path Traversal");

  script_set_attribute(attribute:"synopsis", value:
"PaperCut NG installed on remote Windows host is affected by a vulnerability");
  script_set_attribute(attribute:"description", value:
"The version of PaperCut NG installed on the remote Windows host is affected by a vulnerability. A Path Traversal 
vulnerability exists in PaperCut NG before 22.1.1 and PaperCut MF before 22.1.1. Under specific conditions, this could 
potentially allow an authenticated attacker to achieve read-only access to the server's filesystem, because requests 
beginning with GET /ui/static/..//.. reach getStaticContent in UIContentResource.class in the static-content-files 
servlet.

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.papercut.com/kb/Main/SecurityBulletinJune2023");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PaperCut NG version 21.2.12, 22.1.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-31046");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/10/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:papercut:papercut_ng");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("papercut_ng_win_installed.nbin");
  script_require_keys("installed_sw/PaperCut NG", "SMB/Registry/Enumerated");

  exit(0);
}
include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': 'PaperCut NG', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version' : '21.2.0', 'fixed_version': '21.2.12'},
        {'min_version' : '22.0', 'fixed_version': '22.1.1'}
      ]
    }
  ]
};

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