high
8.6
CWE
255
Advisory Published
Updated

CVE-2019-1714: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software VPN SAML Authentication Bypass Vulnerability

First published: Wed May 01 2019(Updated: )

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.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Firepower Threat Defense>=6.2.1<6.2.3.12
Cisco Firepower Threat Defense>=6.3.0<6.3.0.3
Cisco Adaptive Security Appliance Software>=9.7<9.8.4
Cisco Adaptive Security Appliance Software>=9.9<9.9.2.50
Cisco Adaptive Security Appliance Software>=9.10<9.10.1.17
Cisco Adaptive Security Virtual Appliance
Cisco Asa-5506-x
Cisco Asa-5506h-x
Cisco Asa-5506w-x
Cisco Asa-5508-x
Cisco Asa-5516-x
Cisco Asa-5525-x
Cisco Asa-5545-x
Cisco Asa-5555-x
Cisco Firepower 2110
Cisco Firepower 2120
Cisco Firepower 2130
Cisco Firepower 2140
Cisco Firepower 4100
Cisco Firepower 9300
Cisco Isa 3000

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Reference Links

Frequently Asked Questions

  • What is CVE-2019-1714?

    CVE-2019-1714 is 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.

  • What is the severity of CVE-2019-1714?

    The severity of CVE-2019-1714 is high with a CVSS score of 8.6.

  • How does CVE-2019-1714 affect Cisco Adaptive Security Appliance Software?

    CVE-2019-1714 affects Cisco Adaptive Security Appliance (ASA) Software versions between 9.7 and 9.8.4, 9.9 and 9.9.2.50, and 9.10 and 9.10.1.17.

  • How does CVE-2019-1714 affect Cisco Firepower Threat Defense Software?

    CVE-2019-1714 affects Cisco Firepower Threat Defense (FTD) Software versions between 6.2.1 and 6.2.3.12, and 6.3.0 and 6.3.0.3.

  • How can I fix CVE-2019-1714?

    To fix CVE-2019-1714, it is recommended to update to the latest version of Cisco Adaptive Security Appliance (ASA) Software or Cisco Firepower Threat Defense (FTD) Software.

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