Mattermost Server 9.11.x < 9.11.6 (MMSA-2024-00378)

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

include('compat.inc');

if (description)
{
  script_id(214348);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/02/28");

  script_cve_id("CVE-2025-22449");
  script_xref(name:"IAVA", value:"2025-A-0017-S");

  script_name(english:"Mattermost Server 9.11.x < 9.11.6 (MMSA-2024-00378)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of Mattermost Server installed on the remote host is prior to 9.11.6. It is, therefore, affected by a
improper access control vulnerability as referenced in the MMSA-2024-00378 advisory. Mattermost versions 9.11.x 
prior to 9.11.5 fail to enforce invite permissions, which allows team admins, with no permission to invite users 
to their team, to invite users by updating the allow_open_invite field via making their team public.

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://mattermost.com/security-updates/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mattermost Server version 9.11.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:M/C:P/I:P/A:N");
  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:H/UI:N/S:U/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-22449");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(284);

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/01/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/12/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/01/17");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mattermost:mattermost_server");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

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

  script_dependencies("mattermost_server_detect.nbin");
  script_require_keys("installed_sw/Mattermost Server");

  exit(0);
}

include('vcf.inc');
include('http.inc');

var port = get_http_port(default:80);

var app_info = vcf::get_app_info(app:'Mattermost Server', port:port, webapp:TRUE);

var constraints = [
  { 'min_version' : '9.11', 'max_version' : '9.11.5', 'fixed_version' : '9.11.6' }
];

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