CVE-2020-3188 Cisco Firepower Threat Defense Software Management Interface Denial of Service Vulnerability
Unauthenticated remote attackers can cause a denial of service on the management interface by exploiting excessive session timeouts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3188?
CVE-2020-3188 is a medium-severity denial of service vulnerability in Cisco Secure Firewall Threat Defense, published on 6 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in how Cisco Firepower Threat Defense (FTD) Software handles session timeouts for management connections could allow an unauthenticated, remote attacker to cause a buildup of remote management connections to an affected device, which could result in a denial of service (DoS) condition. The vulnerability exists because the default session timeout period for specific to-the-box remote management connections is too long. An attacker could exploit this vulnerability by sending a large and sustained number of crafted remote management connections to an affected device, resulting in a buildup of those connections over time. A successful exploit could allow the attacker to cause the remote management interface or Cisco Firepower Device Manager (FDM) to stop responding and cause other management functions to go offline, resulting in a DoS condition. The user traffic that is flowing through the device would not be affected, and the DoS condition would be isolated to remote management only.
Which versions are affected by CVE-2020-3188?
It affects 13 products.
Products include Cisco Asa 5505 Firmware, Cisco Asa 5510 Firmware, Cisco Asa 5512-X Firmware, Cisco Asa 5515-X Firmware, Cisco Asa 5520 Firmware, Cisco Asa 5525-X Firmware and 7 more.
How do I fix CVE-2020-3188?
No fix has been published for CVE-2020-3188 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-3188 being exploited?
There is no known exploitation of CVE-2020-3188 in the wild and no public exploit code.
Other vulnerabilities in Cisco Secure Firewall Threat Defense
- CVE-2020-3179 Cisco Firepower Threat Defense Software Generic Routing Encapsulation Tunnel IPv6 Denial of Service Vulnerability
- CVE-2020-3189 Cisco Firepower Threat Defense Software VPN System Logging Denial of Service Vulnerability
- CVE-2020-3283 Cisco Firepower 1000 Series SSL/TLS Denial of Service Vulnerability
- CVE-2020-3255 Cisco Firepower Threat Defense Software Packet Flood Denial of Service Vulnerability
- CVE-2020-3186 Cisco Firepower Threat Defense Software Management Access List Bypass Vulnerability
Sources
Also known as GHSA-624j-v5v7-qjpg.