Cisco Webex Meetings User Email Address Information Disclosure (cisco-sa-webex-mAkmV4qc)

#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(139575);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/29");

  script_cve_id("CVE-2020-3472");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvu40725");
  script_xref(name:"CISCO-SA", value:"cisco-sa-webex-mAkmV4qc");
  script_xref(name:"IAVA", value:"2020-A-0273");

  script_name(english:"Cisco Webex Meetings User Email Address Information Disclosure (cisco-sa-webex-mAkmV4qc)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, Cisco Webex Meetings is affected by an information disclosure vulnerability
due to improper access restrictions on users who are added within user contacts. An authenticated, remote attacker
with a legitimate user account can exploit this, by sending specially crafted requests to the Webex Meetings site, in
order to access sensitive information.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-mAkmV4qc
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e21ac8e8");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu40725");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvu40725");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/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:L/UI:N/S:C/C:L/I:N/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-2020-3472");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(200);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/08/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/08/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:webex_meetings");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("cisco_webex_meetings_win_installed.nbin");
  script_require_keys("installed_sw/Cisco Webex Meetings");

  exit(0);
}

include('vcf.inc');

app_info = vcf::get_app_info(app:'Cisco Webex Meetings');
vcf::check_granularity(app_info:app_info, sig_segments:3);

# Advisory states: "This vulnerability has been fixed in Cisco Webex Meetings.
# There is no action customers need to take to get the update for Cisco hosted Webex Meetings sites."
constraints = [
  {'fixed_version': '40.7.0', 'fixed_display': 'See vendor advisory'}
];

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