Cisco Unified Communications Manager Arbitrary File Read (cisco-sa-ucm-file-read-qgjhEc3A)

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

include('compat.inc');

if (description)
{
  script_id(162883);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/07/08");

  script_cve_id("CVE-2022-20862");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvy86663");
  script_xref(name:"CISCO-SA", value:"cisco-sa-ucm-file-read-qgjhEc3A");
  script_xref(name:"IAVA", value:"2022-A-0266");

  script_name(english:"Cisco Unified Communications Manager Arbitrary File Read (cisco-sa-ucm-file-read-qgjhEc3A)");

  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) is affected by a vulnerability in its web-based
management interface that allows an authenticated, remote attacker to read arbitrary files on the underlying operating
system of an affected device. This vulnerability is due to improper validation of user-supplied input. An attacker could
exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to an
affected system. A successful exploit could allow the attacker to access sensitive files on the 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-ucm-file-read-qgjhEc3A
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8b810309");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy86663");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvy86663");
  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: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-2022-20862");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(23);

  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:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022 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');

var vuln_ranges = [
    # 12.5(1)SU6  - https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/rel_notes/12_5_1/SU6/cucm_b_release-notes-for-cucm-imp-1251su6.html#concept_3AE1A8725C991DE13C6A6E6357DC83CB
    {'min_ver': '12.5.1', 'fix_ver': '12.5.1.16900.48'},
    # 14SU2 - 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#concept_4A61110C9CA66466EEB5A04F447D46E0
    {'min_ver': '14.0', 'fix_ver': '14.0.1.12900.161'}
];

var reporting = make_array(
  'port'     , 0,
  'severity' , SECURITY_WARNING,
  'version'  , product_info['display_version'],
  'bug_id'   , 'CSCvy86663',
  'disable_caveat', TRUE
);

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