A vulnerability in the Session Initiation Protocol (SIP) inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload or trigger high CPU, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of SIP traffic. An attacker could exploit this vulnerability by sending SIP requests designed to specifically trigger this issue at a high rate across an affected device. Software updates that address this vulnerability are not yet available.
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 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.
2018-11-01T12:29:00.190
2024-11-21T03:50:50.363
Modified
CVSSv3.0: 8.6 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | adaptive_security_appliance_software | < 9.4.4.27 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.6.4.18 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.8.3.16 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.9.2.32 | Yes |
| Operating System | cisco | adaptive_security_appliance_software | < 9.10.1.2 | Yes |
| Application | cisco | firepower_threat_defense | < 6.1.0.7 | Yes |
| Application | cisco | firepower_threat_defense | < 6.2.0.6 | Yes |
| Application | cisco | firepower_threat_defense | < 6.2.2.4 | Yes |
| Application | cisco | firepower_threat_defense | < 6.2.3.7 | 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.