WhatsApp Desktop for Mac 2.22.25.2 < 2.25.21.78 Incorrect Authorization (August Update)

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

include('compat.inc');

if (description)
{
  script_id(265762);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/24");

  script_cve_id("CVE-2025-55177");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2025/09/23");

  script_name(english:"WhatsApp Desktop for Mac 2.22.25.2 < 2.25.21.78 Incorrect Authorization (August Update)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of WhatsApp Desktop installed on the remote host is 2.22.25.2 prior to 2.25.21.78. It is, therefore, 
affected by a vulnerability as referenced in the August update advisory:

  - Incomplete authorization of linked device synchronization messages in WhatsApp for Mac v2.25.21.78 could 
    have allowed an unrelated user to trigger processing of content from an arbitrary URL on a target’s 
    device. We assess that this vulnerability, in combination with an OS-level vulnerability on Apple 
    platforms CVE-2025-43300, may have been exploited in a sophisticated attack against specific targeted 
    users. (CVE-2025-55177)

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.whatsapp.com/security/advisories/2025/");
  script_set_attribute(attribute:"see_also", value:"https://www.facebook.com/security/advisories/cve-2025-55177");
  script_set_attribute(attribute:"solution", value:
"Upgrade to WhatsApp version 2.25.21.78 or later");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-55177");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/08/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/08/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/09/24");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

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

  script_dependencies("macosx_whatsapp_installed.nbin");
  script_require_keys("installed_sw/WhatsApp Desktop");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'macos'}}
  ],
  'checks': [
    {
      'product': {'name': 'WhatsApp Desktop', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
        {'min_version' : '22.25.2', 'fixed_version' : '25.21.78', 'fixed_display' : '2.25.21.78'}
      ]
    }
  ]
};

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