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nessusThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.CISCO-SA-20191002-FTD.NASL
HistoryMar 13, 2020 - 12:00 a.m.

Cisco FTD Software Pluggable Authentication Module DoS (cisco-sa-20191002-ftd-fpmc-dos)

2020-03-1300:00:00
This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
16

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

45.1%

According to its self-reported version, Cisco Firepower Threat Defense (FTD) Software is affected by a vulnerability in the configuration of the Pluggable Authentication Module (PAM) due to improper resource management in the context of user session management. An authenticated, remote attacker can exploit this, by connecting to an affected system and performing many simultaneous successful Secure Shell (SSH) logins, in order to exhaust system resources and cause a denial of service (DoS) condition.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

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

include('compat.inc');

if (description)
{
  script_id(134449);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/08/14");

  script_cve_id("CVE-2019-12700");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvm92401");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvn83385");
  script_xref(name:"CISCO-SA", value:"cisco-sa-20191002-ftd-fpmc-dos");
  script_xref(name:"IAVA", value:"2019-A-0370");

  script_name(english:"Cisco FTD Software Pluggable Authentication Module DoS (cisco-sa-20191002-ftd-fpmc-dos)");

  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 Firepower Threat Defense (FTD) Software is affected by a vulnerability
in the configuration of the Pluggable Authentication Module (PAM) due to improper resource management in the context of
user session management. An authenticated, remote attacker can exploit this, by connecting to an affected system and
performing many simultaneous successful Secure Shell (SSH) logins, in order to exhaust system resources and cause a
denial of service (DoS) condition. 

Please see the included Cisco BIDs and Cisco Security Advisory for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-ftd-fpmc-dos
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?481199e8");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvm92401");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn83385");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvm92401, CSCvn83385");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/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:L/UI:N/S:U/C:N/I:N/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-2019-12700");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:firepower_threat_defense");
  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 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("cisco_asa_firepower_version.nasl", "cisco_enumerate_firepower.nbin");
  script_require_keys("installed_sw/Cisco Firepower Threat Defense");

  exit(0);
}

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

product_info = cisco::get_product_info(name:'Cisco Firepower Threat Defense');
product_info['model'] = product_info['Model'];

if (product_info['model'] =~ "^(10|21)[0-9]{2}")
  vuln_ranges = [
    {'min_ver' : '0.0',  'fix_ver' : '6.2.3.14'}
  ];
else
  vuln_ranges = [
    {'min_ver' : '0.0',  'fix_ver' : '6.2.2.5'},
    {'min_ver' : '6.2.3',  'fix_ver' : '6.2.3.7'}
  ];

workarounds = make_list(CISCO_WORKAROUNDS['no_workaround']);
workaround_params = make_list();

reporting = make_array(
  'port'     , 0,
  'severity' , SECURITY_WARNING,
  'version'  , product_info['version'],
  'bug_id'   , 'CSCvm92401, CSCvn83385'
);

cisco::check_and_report(
  product_info:product_info,
  workarounds:workarounds,
  workaround_params:workaround_params,
  reporting:reporting,
  vuln_ranges:vuln_ranges
);
VendorProductVersionCPE
ciscofirepower_threat_defensecpe:/o:cisco:firepower_threat_defense

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

45.1%

Related for CISCO-SA-20191002-FTD.NASL