Cisco Webex Teams Logging Feature Command Execution Vulnerability

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

include('compat.inc');

if (description)
{
  script_id(136712);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/09/08");

  script_cve_id("CVE-2019-1939");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvp30119");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20190904-webex-teams");

  script_name(english:"Cisco Webex Teams Logging Feature Command Execution Vulnerability");

  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 Teams client for
Windows is affected by a command execution vulnerability due to
improper restrictions on software logging features. An unauthenticated,
remote attacker could exploit this vulnerability by convincing a
targeted user to visit a website designed to submit malicious input
to the affected application. A successful exploit allows the attacker
to cause the application to modify files and execute arbitrary commands
on the system with the privileges of the targeted user.

Please see the included Cisco BID and Cisco Security Advisory for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190904-webex-teams
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f0829514");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvp30119");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvp30119");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:N/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-2019-1939");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(74);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/19");

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

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

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

  script_dependencies("cisco_webex_teams_installed_win.nbin");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/Webex Teams");

  exit(0);
}

include('vcf.inc');

app = 'Webex Teams';

app_info = vcf::get_app_info(app:app, port:port, win_local:TRUE);
vcf::check_granularity(app_info:app_info, sig_segments:3);

constraints = [
    { 'fixed_version':'3.0.12427.0' }
];

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