Cisco Unified Communications Manager File Read (cisco-sa-cucm-imp-afr-YBFLNyzd)

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

include('compat.inc');

if (description)
{
  script_id(162881);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/03/23");

  script_cve_id("CVE-2022-20791");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvz07265");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvz32980");
  script_xref(name:"CISCO-SA", value:"cisco-sa-cucm-imp-afr-YBFLNyzd");
  script_xref(name:"IAVA", value:"2022-A-0266");

  script_name(english:"Cisco Unified Communications Manager File Read (cisco-sa-cucm-imp-afr-YBFLNyzd)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch");
  script_set_attribute(attribute:"description", value:
"The version of Cisco Unified Communications Manager (Unified CM) installed on the remote host is prior to 14SU2. It
is, therefore, affected by a file read vulnerability. Due to insufficient file permissions, an authenticated remote
attacker could read arbitrary files on the underlying operating system.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-imp-afr-YBFLNyzd
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ce881eef");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvz07265");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvz32980");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvz07265, CSCvz32980");
  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:U/C:H/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-2022-20791");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(36);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/07/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/07/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/07/08");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:unified_communications_manager");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("cisco_ucm_detect.nbin");
  script_require_keys("Host/Cisco/CUCM/Version", "Host/Cisco/CUCM/Version_Display");

  exit(0);
}

include('ccf.inc');

var product_info = cisco::get_product_info(name:'Cisco Unified Communications Manager');

# https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/rel_notes/14_0_1/SU2/cucm_b_release-notes-for-cucm-imp-14su2.html
var vuln_ranges = [{ 'min_ver' : '0.0',  'fix_ver' : '14.0.1.12900.161'}];

var reporting = make_array(
  'port', 0,
  'severity', SECURITY_WARNING,
  'version', product_info['display_version'],
  'bug_id', 'CSCvz07265, CSCvz32980',
  'fix', '14SU2',
  'disable_caveat', TRUE
);

cisco::check_and_report(
  product_info:product_info,
  reporting:reporting,
  vuln_ranges:vuln_ranges
);