Cisco IOS and IOS XE Software Tcl Arbitrary Code Execution (cisco-sa-tcl-ace-C9KuVKmm)

#TRUSTED 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
#TRUST-RSA-SHA256 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
#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(137631);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/03");

  script_cve_id("CVE-2020-3204");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvq05584");
  script_xref(name:"CISCO-SA", value:"cisco-sa-tcl-ace-C9KuVKmm");
  script_xref(name:"IAVA", value:"2020-A-0239-S");

  script_name(english:"Cisco IOS and IOS XE Software Tcl Arbitrary Code Execution (cisco-sa-tcl-ace-C9KuVKmm)");

  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, IOS XE is affected by a Arbitrary Code Execution vulnerability. An
authenticated, local attacker with privileged EXEC credentials to execute arbitrary code on the underlying operating
system (OS) with root privileges. The vulnerability is due to insufficient input validation of data passed to the Tcl
interpreter. A successful exploit could allow the attacker to cause memory corruption or execute the code with root
privileges on the underlying OS of the affected device.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tcl-ace-C9KuVKmm
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7843b571");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvq05584");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvq05584");
  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:H/UI:N/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-2020-3204");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(20);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/06/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/18");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:ios_xe");
  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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("cisco_ios_xe_version.nasl");
  script_require_keys("Host/Cisco/IOS-XE/Version");

  exit(0);
}

include('cisco_workarounds.inc');
include('ccf.inc');

product_info = cisco::get_product_info(name:'Cisco IOS XE Software');

version_list=make_list(
  '3.9.2bE',
  '3.9.2S',
  '3.9.2E',
  '3.9.1aS',
  '3.9.1S',
  '3.9.1E',
  '3.9.0aS',
  '3.9.0S',
  '3.9.0E',
  '3.8.9E',
  '3.8.8E',
  '3.8.7E',
  '3.8.6E',
  '3.8.5aE',
  '3.8.5E',
  '3.8.4E',
  '3.8.3E',
  '3.8.2S',
  '3.8.2E',
  '3.8.1S',
  '3.8.1E',
  '3.8.0S',
  '3.8.0E',
  '3.7.8S',
  '3.7.7S',
  '3.7.6S',
  '3.7.5S',
  '3.7.5E',
  '3.7.4aS',
  '3.7.4S',
  '3.7.4E',
  '3.7.3S',
  '3.7.3E',
  '3.7.2tS',
  '3.7.2S',
  '3.7.2E',
  '3.7.1aS',
  '3.7.1S',
  '3.7.1E',
  '3.7.0bS',
  '3.7.0S',
  '3.7.0E',
  '3.6.9aE',
  '3.6.9E',
  '3.6.8E',
  '3.6.7bE',
  '3.6.7aE',
  '3.6.7E',
  '3.6.6E',
  '3.6.5bE',
  '3.6.5aE',
  '3.6.5E',
  '3.6.4E',
  '3.6.3E',
  '3.6.2aE',
  '3.6.1E',
  '3.6.10E',
  '3.6.0bE',
  '3.6.0aE',
  '3.6.0E',
  '3.5.8SQ',
  '3.5.7SQ',
  '3.5.6SQ',
  '3.5.5SQ',
  '3.5.4SQ',
  '3.5.3SQ',
  '3.5.3E',
  '3.5.2SQ',
  '3.5.2E',
  '3.5.1SQ',
  '3.5.1E',
  '3.5.0SQ',
  '3.5.0E',
  '3.4.8SG',
  '3.4.7SG',
  '3.4.6SG',
  '3.4.5SG',
  '3.4.4SG',
  '3.4.3SG',
  '3.4.2SG',
  '3.4.1SQ',
  '3.4.1SG',
  '3.4.0SQ',
  '3.4.0SG',
  '3.3.5SE',
  '3.3.4SE',
  '3.3.3SE',
  '3.3.2XO',
  '3.3.2SG',
  '3.3.2SE',
  '3.3.1XO',
  '3.3.1SQ',
  '3.3.1SG',
  '3.3.1SE',
  '3.3.0XO',
  '3.3.0SQ',
  '3.3.0SG',
  '3.3.0SE',
  '3.2.9SG',
  '3.2.8SG',
  '3.2.7SG',
  '3.2.6SG',
  '3.2.5SG',
  '3.2.4SG',
  '3.2.3SG',
  '3.2.3SE',
  '3.2.2SG',
  '3.2.2SE',
  '3.2.1SG',
  '3.2.1SE',
  '3.2.11SG',
  '3.2.10SG',
  '3.2.0SG',
  '3.2.0SE',
  '3.18.7SP',
  '3.18.6SP',
  '3.18.5SP',
  '3.18.4SP',
  '3.18.4S',
  '3.18.3bSP',
  '3.18.3aSP',
  '3.18.3SP',
  '3.18.3S',
  '3.18.2aSP',
  '3.18.2SP',
  '3.18.2S',
  '3.18.1iSP',
  '3.18.1hSP',
  '3.18.1gSP',
  '3.18.1cSP',
  '3.18.1bSP',
  '3.18.1aSP',
  '3.18.1SP',
  '3.18.1S',
  '3.18.0aS',
  '3.18.0SP',
  '3.18.0S',
  '3.17.4S',
  '3.17.3S',
  '3.17.2S ',
  '3.17.1aS',
  '3.17.1S',
  '3.17.0S',
  '3.16.9S',
  '3.16.8S',
  '3.16.7bS',
  '3.16.7aS',
  '3.16.7S',
  '3.16.6bS',
  '3.16.6S',
  '3.16.5bS',
  '3.16.5aS',
  '3.16.5S',
  '3.16.4gS',
  '3.16.4eS',
  '3.16.4dS',
  '3.16.4cS',
  '3.16.4bS',
  '3.16.4aS',
  '3.16.4S',
  '3.16.3aS',
  '3.16.3S',
  '3.16.2bS',
  '3.16.2aS',
  '3.16.2S',
  '3.16.1aS',
  '3.16.1S',
  '3.16.10S',
  '3.16.0cS',
  '3.16.0bS',
  '3.16.0aS',
  '3.16.0S',
  '3.15.4S',
  '3.15.3S',
  '3.15.2S',
  '3.15.1cS',
  '3.15.1S',
  '3.15.0S',
  '3.14.4S',
  '3.14.3S',
  '3.14.2S',
  '3.14.1S',
  '3.14.0S',
  '3.13.9S',
  '3.13.8S',
  '3.13.7aS',
  '3.13.7S',
  '3.13.6bS',
  '3.13.6aS',
  '3.13.6S',
  '3.13.5aS',
  '3.13.5S',
  '3.13.4S',
  '3.13.3S',
  '3.13.2aS',
  '3.13.2S',
  '3.13.1S',
  '3.13.10S',
  '3.13.0aS',
  '3.13.0S',
  '3.12.4S',
  '3.12.3S',
  '3.12.2S',
  '3.12.1S',
  '3.12.0aS',
  '3.12.0S',
  '3.11.4S',
  '3.11.3S',
  '3.11.2S',
  '3.11.1aE',
  '3.11.1S',
  '3.11.1E',
  '3.11.0S',
  '3.11.0E',
  '3.10.9S',
  '3.10.8aS',
  '3.10.8S',
  '3.10.7S',
  '3.10.6S',
  '3.10.5S',
  '3.10.4S',
  '3.10.3S',
  '3.10.3E',
  '3.10.2tS',
  '3.10.2aS',
  '3.10.2S',
  '3.10.2E',
  '3.10.1sE',
  '3.10.1aE',
  '3.10.1S',
  '3.10.1E',
  '3.10.10S',
  '3.10.0cE',
  '3.10.0S',
  '3.10.0E',
  '16.9.4c',
  '16.9.4',
  '16.9.3s',
  '16.9.3h',
  '16.9.3a',
  '16.9.3',
  '16.9.2s',
  '16.9.2a',
  '16.9.2',
  '16.9.1s',
  '16.9.1d',
  '16.9.1c',
  '16.9.1b',
  '16.9.1a',
  '16.9.1',
  '16.8.3',
  '16.8.2',
  '16.8.1s',
  '16.8.1e',
  '16.8.1d',
  '16.8.1c',
  '16.8.1b',
  '16.8.1a',
  '16.8.1',
  '16.7.4',
  '16.7.3',
  '16.7.2',
  '16.7.1b',
  '16.7.1a',
  '16.7.1',
  '16.6.7a',
  '16.6.7',
  '16.6.6',
  '16.6.5b',
  '16.6.5a',
  '16.6.5',
  '16.6.4s',
  '16.6.4a',
  '16.6.4',
  '16.6.3',
  '16.6.2',
  '16.6.1',
  '16.5.3',
  '16.5.2',
  '16.5.1b',
  '16.5.1a',
  '16.5.1',
  '16.4.3',
  '16.4.2',
  '16.4.1',
  '16.3.9',
  '16.3.8',
  '16.3.7',
  '16.3.6',
  '16.3.5b',
  '16.3.5',
  '16.3.4',
  '16.3.3',
  '16.3.2',
  '16.3.1a',
  '16.3.1',
  '16.2.2',
  '16.2.1',
  '16.12.2a',
  '16.12.2',
  '16.12.1y',
  '16.12.1w',
  '16.12.1t',
  '16.12.1s',
  '16.12.1c',
  '16.12.1a',
  '16.12.1',
  '16.11.1s',
  '16.11.1c',
  '16.11.1b',
  '16.11.1a',
  '16.11.1',
  '16.10.2',
  '16.10.1s',
  '16.10.1g',
  '16.10.1f',
  '16.10.1e',
  '16.10.1d',
  '16.10.1c',
  '16.10.1b',
  '16.10.1a',
  '16.10.1',
  '16.1.3',
  '16.1.2',
  '16.1.1'
);

reporting = make_array(
  'port'     , product_info['port'], 
  'severity' , SECURITY_HOLE,
  'version'  , product_info['version'],
  'bug_id'   , 'CSCvq05584',
  'disable_caveat', TRUE
);

cisco::check_and_report(
  product_info:product_info,
  reporting:reporting,
  vuln_versions:version_list
);