CVE-2020-3514: Cisco Firepower Threat Defense Software Multi-Instance Container Escape Vulnerability
First published: Wed Oct 21 2020(Updated: )
A vulnerability in the multi-instance feature of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to escape the container for their Cisco FTD instance and execute commands with root privileges in the host namespace. The attacker must have valid credentials on the device.The vulnerability exists because a configuration file that is used at container startup has insufficient protections. An attacker could exploit this vulnerability by modifying a specific container configuration file on the underlying file system. A successful exploit could allow the attacker to execute commands with root privileges within the host namespace. This could allow the attacker to impact other running Cisco FTD instances or the host Cisco FXOS device.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Management Center | <6.6.1 | |
| Cisco Firepower Threat Defense | >=6.3.0<6.3.0.6 | |
| Cisco Firepower Threat Defense | >=6.4.0<6.4.0.10 | |
| Cisco Firepower Threat Defense | >=6.5.0<6.5.0.5 | |
| Cisco Firepower Threat Defense | =6.6.0 | |
| Cisco Secure Firewall Management Center | <6.6.1 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2020-3514.
What is the severity of CVE-2020-3514?
The severity of CVE-2020-3514 is high.
What software is affected by CVE-2020-3514?
Cisco Firepower Management Center and Cisco Firepower Threat Defense versions 6.3.0 to 6.6.1 are affected by CVE-2020-3514.
How can an attacker exploit CVE-2020-3514?
An authenticated, local attacker with valid credentials can escape the container for their Cisco FTD instance and execute commands with root privileges in the host namespace.
Is there a fix available for CVE-2020-3514?
Yes, Cisco has released a security advisory with mitigation details. Please refer to the Cisco Security Advisory for more information.
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