CVE-2019-1714

HIGH

Cisco ASA/Firepower Threat Defense - Unauthenticated VPN Session Hijack via SAML SSO

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/108185

Scores

CVSS v3 8.6
EPSS 0.0198
EPSS Percentile 78.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-255
Status published
Products (2)
cisco/adaptive_security_appliance_software 9.7 - 9.8.4
cisco/firepower_threat_defense 6.2.1 - 6.2.3.12
Published May 03, 2019
Tracked Since Feb 18, 2026