A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to an attempt to double free a region of memory when the webvpn feature is enabled on the Cisco ASA device. An attacker could exploit this vulnerability by sending multiple, crafted XML packets to a webvpn-configured interface on the affected system. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system, or cause a reload of the affected device. This vulnerability affects Cisco ASA Software that is running on the following Cisco products: 3000 Series Industrial Security Appliance (ISA), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, ASA 1000V Cloud Firewall, Adaptive Security Virtual Appliance (ASAv), Firepower 2100 Series Security Appliance, Firepower 4110 Security Appliance, Firepower 9300 ASA Security Module, Firepower Threat Defense Software (FTD). Cisco Bug IDs: CSCvg35618.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 10.0, 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 confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 2 products from cisco, from cisco organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, 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.
2018-01-29T20:29:00.280
2024-11-21T03:37:31.353
Modified
CVSSv3.0: 10.0 (CRITICAL)
AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | adaptive_security_appliance_software | < 9.1.7.23 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.2.4.27 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.4.4.16 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.6.4.3 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.7.1.21 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.8.2.20 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.9.1.2 | Yes |
| Application | cisco | firepower_threat_defense | 6.0.0 | Yes |
| Application | cisco | firepower_threat_defense | 6.0.1 | Yes |
| Application | cisco | firepower_threat_defense | 6.1.0 | Yes |
| Application | cisco | firepower_threat_defense | 6.2.0 | Yes |
| Application | cisco | firepower_threat_defense | 6.2.1 | Yes |
| Application | cisco | firepower_threat_defense | 6.2.2 | Yes |
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.