CVE-2020-3188: Cisco Firepower Threat Defense Software Management Interface Denial of Service Vulnerability
First published: Wed May 06 2020(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Threat Defense | >=6.4.0<6.4.0.9 | |
| Cisco Firepower Threat Defense | >=6.5.0<6.5.0.5 | |
| Cisco Asa 5505 Firmware | =9.8\(3\) | |
| Cisco Asa 5505 Firmware | =101.6\(1.96\) | |
| Cisco Asa 5505 | ||
| Cisco Asa 5510 Firmware | =9.8\(3\) | |
| Cisco Asa 5510 Firmware | =101.6\(1.96\) | |
| Cisco Asa 5510 | ||
| Cisco Asa 5512-x Firmware | =9.8\(3\) | |
| Cisco Asa 5512-x Firmware | =101.6\(1.96\) | |
| Cisco Asa 5512-x | ||
| Cisco Asa 5515-x Firmware | =9.8\(3\) | |
| Cisco Asa 5515-x Firmware | =101.6\(1.96\) | |
| Cisco Asa 5515-x | ||
| Cisco Asa 5520 Firmware | =9.8\(3\) | |
| Cisco Asa 5520 Firmware | =101.6\(1.96\) | |
| Cisco Asa 5520 | ||
| Cisco Asa 5525-x Firmware | =9.8\(3\) | |
| Cisco Asa 5525-x Firmware | =101.6\(1.96\) | |
| Cisco Asa 5525-x | ||
| Cisco Asa 5540 Firmware | =9.8\(3\) | |
| Cisco Asa 5540 Firmware | =101.6\(1.96\) | |
| Cisco Asa 5540 | ||
| Cisco Asa 5545-x Firmware | =9.8\(3\) | |
| Cisco Asa 5545-x Firmware | =101.6\(1.96\) | |
| Cisco Asa 5545-x | ||
| Cisco Asa 5550 Firmware | =9.8\(3\) | |
| Cisco Asa 5550 Firmware | =101.6\(1.96\) | |
| Cisco Asa 5550 | ||
| Cisco Asa 5555-x Firmware | =9.8\(3\) | |
| Cisco Asa 5555-x Firmware | =101.6\(1.96\) | |
| Cisco Asa 5555-x | ||
| Cisco Asa 5580 Firmware | =9.8\(3\) | |
| Cisco Asa 5580 Firmware | =101.6\(1.96\) | |
| Cisco Asa 5580 | ||
| Cisco Asa 5585-x Firmware | =9.8\(3\) | |
| Cisco Asa 5585-x Firmware | =101.6\(1.96\) | |
| Cisco Asa 5585-x |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3188?
CVE-2020-3188 is a vulnerability in Cisco Firepower Threat Defense (FTD) Software that allows an unauthenticated, remote attacker to cause a denial of service (DoS) condition.
Which Cisco products are affected by CVE-2020-3188?
Cisco Firepower Threat Defense (FTD) Software versions 6.4.0 to 6.4.0.9, and versions 6.5.0 to 6.5.0.5 are affected.
What is the severity of CVE-2020-3188?
CVE-2020-3188 has a severity rating of 5.3 (medium).
How can an attacker exploit CVE-2020-3188?
An attacker can exploit CVE-2020-3188 by causing a buildup of remote management connections to a vulnerable device, resulting in a denial of service (DoS) condition.
Where can I find more information about CVE-2020-3188?
You can find more information about CVE-2020-3188 on the Cisco Security Advisory website.
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- canonical/cisco asa 5510 firmware
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- canonical/cisco asa 5512-x firmware
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- version/cisco asa 5512-x firmware/101.6\(1.96\)
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- canonical/cisco asa 5515-x firmware
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- canonical/cisco asa 5520 firmware
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- canonical/cisco asa 5555-x firmware
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- canonical/cisco asa 5580 firmware
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- canonical/cisco asa 5585-x firmware
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