Resource exhaustion in Cisco Firepower Threat Defense Software
CVE-2018-15462
A vulnerability in the TCP ingress handler for the data interfaces that are configured with management access to Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an increase in CPU and memory usage, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient ingress TCP rate limiting for TCP ports 22 (SSH) and 443 (HTTPS). An attacker could exploit this vulnerability by sending a crafted, steady stream of TCP traffic to port 22 or 443 on the data interfaces that are configured with management access to the affected device.
EPSS: 0.021 (79.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
- psirt@cisco.com (vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2018-15462?
- CVE-2018-15462 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under CWE-399. CVSS score: 8.6/10. Published 2019-05-03.
- How severe is CVE-2018-15462?
- High severity. CVSS v3 base score is 8.6 out of 10.