Cisco ASA Credentials Management Errors (CVE-2019-1714)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(506191);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/07");

  script_cve_id("CVE-2019-1714");

  script_name(english:"Cisco ASA Credentials Management Errors (CVE-2019-1714)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A vulnerability in the implementation of Security Assertion Markup
Language (SAML) 2.0 Single Sign-On (SSO) for Clientless SSL VPN
(WebVPN) and AnyConnect Remote Access VPN in Cisco Adaptive Security
Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD)
Software could allow an unauthenticated, remote attacker to
successfully establish a VPN session to an affected device. The
vulnerability is due to improper credential management when using NT
LAN Manager (NTLM) or basic authentication. An attacker could exploit
this vulnerability by opening a VPN session to an affected device
after another VPN user has successfully authenticated to the affected
device via SAML SSO. A successful exploit could allow the attacker to
connect to secured networks behind the affected device.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asaftd-saml-vpn
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4bb85a40");
  script_set_attribute(attribute:"see_also", value:"http://www.securityfocus.com/bid/108185");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/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:N/UI:N/S:C/C:N/I:H/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-2019-1714");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(255);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/06");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:adaptive_security_appliance_software:9");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Cisco");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Cisco');

var asset = tenable_ot::assets::get(vendor:'Cisco');

var vuln_cpes = {
    "cpe:/o:cisco:adaptive_security_appliance_software:9.7" :
        {"versionEndExcluding" : "9.8.4", "versionStartIncluding" : "9.7", "family" : "CiscoFirepower"},
    "cpe:/o:cisco:adaptive_security_appliance_software:9.9" :
        {"versionEndExcluding" : "9.9.2.50", "versionStartIncluding" : "9.9", "family" : "CiscoFirepower"},
    "cpe:/o:cisco:adaptive_security_appliance_software:9.10" :
        {"versionEndExcluding" : "9.10.1.17", "versionStartIncluding" : "9.10", "family" : "CiscoFirepower"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);