CVE-2019-1714 Auth bypass in Cisco Adaptive Security Appliance (ASA) Software

Medium 5.8 Published Updated

Unauthenticated attackers can bypass SAML SSO authentication to establish VPN sessions and access secured networks behind Cisco ASA or FTD devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-1714?

CVE-2019-1714 is a medium-severity authentication bypass vulnerability in Cisco Adaptive Security Appliance Software, published on 3 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-255

Which versions are affected by CVE-2019-1714?

It affects 2 products.

Products include Cisco Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense.

How do I fix CVE-2019-1714?

No fix has been published for CVE-2019-1714 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2019-1714 being exploited?

There is no known exploitation of CVE-2019-1714 in the wild and no public exploit code.

All Cisco Adaptive Security Appliance Software vulnerabilities

Sources

Also known as GHSA-c2pv-f87v-p3wc.

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