Security Updates for Microsoft Skype for Business (February 2024)

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

include('compat.inc');

if (description)
{
  script_id(190556);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/16");

  script_cve_id("CVE-2024-20673");
  script_xref(name:"MSKB", value:"5002181");
  script_xref(name:"MSFT", value:"MS24-5002181");

  script_name(english:"Security Updates for Microsoft Skype for Business (February 2024)");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft Skype for Business installation on the remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The Microsoft Skype for Business installation on the remote
host is missing a security update. It is, therefore, affected by remote code execution vulnerability. 
An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands.");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/5002181");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released KB5002181 to address this issue.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/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-2024-20673");

  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:"2024/02/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/15");

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

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

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("office_installed.nasl", "microsoft_lync_server_installed.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include('vcf.inc');

var app = 'Microsoft Lync';
var app_info = vcf::get_app_info(app:app);

var constraints = [
  {'min_version': '16.0', 'fixed_version': '16.0.5431.1000'}
];

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