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 vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.6, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 18 products from cisco, from cisco, from cisco and 15 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2019-05-03T17:29:00.533
2024-11-21T04:37:09.697
Modified
CVSSv3.1: 8.6 (HIGH)
AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | firepower_threat_defense | < 6.2.3.12 | Yes |
| Application | cisco | firepower_threat_defense | < 6.3.0.3 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.8.4 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.9.2.50 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.10.1.17 | Yes |
| Application | cisco | adaptive_security_virtual_appliance | - | No |
| Hardware | cisco | asa-5506-x | - | No |
| Hardware | cisco | asa-5506h-x | - | No |
| Hardware | cisco | asa-5506w-x | - | No |
| Hardware | cisco | asa-5508-x | - | No |
| Hardware | cisco | asa-5516-x | - | No |
| Hardware | cisco | asa-5525-x | - | No |
| Hardware | cisco | asa-5545-x | - | No |
| Hardware | cisco | asa-5555-x | - | No |
| Hardware | cisco | firepower_2110 | - | No |
| Hardware | cisco | firepower_2120 | - | No |
| Hardware | cisco | firepower_2130 | - | No |
| Hardware | cisco | firepower_2140 | - | No |
| Hardware | cisco | firepower_4100 | - | No |
| Hardware | cisco | firepower_9300 | - | No |
| Hardware | cisco | isa_3000 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.