CVE-2020-3458: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 1000/2100 Series Appliances Secure Boot Bypass Vulnerabilities
First published: Wed Oct 21 2020(Updated: )
Multiple vulnerabilities in the secure boot process of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software for the Firepower 1000 Series and Firepower 2100 Series Appliances could allow an authenticated, local attacker to bypass the secure boot mechanism. The vulnerabilities are due to insufficient protections of the secure boot process. An attacker could exploit these vulnerabilities by injecting code into specific files that are then referenced during the device boot process. A successful exploit could allow the attacker to break the chain of trust and inject code into the boot process of the device, which would be executed at each boot and maintain persistence across reboots.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Adaptive Security Appliance Software | >=9.8.0<9.8.4.26 | |
| Cisco Adaptive Security Appliance Software | >=9.9.0<9.9.2.80 | |
| Cisco Adaptive Security Appliance Software | >=9.10.0<9.10.1.43 | |
| Cisco Adaptive Security Appliance Software | >=9.12.0<9.12.4.3 | |
| Cisco Adaptive Security Appliance Software | >=9.13.0<9.13.1.13 | |
| Cisco Adaptive Security Appliance Software | >=9.14.0<9.14.1.15 | |
| Cisco Firepower 1010 | ||
| Cisco Firepower 1010 | ||
| Cisco Firepower 1120 | ||
| Cisco Firepower 1140 | ||
| Cisco Firepower 1150 | ||
| Cisco Firepower 2110 | ||
| Cisco Firepower 2120 | ||
| Cisco Firepower 2130 | ||
| Cisco Firepower 2140 | ||
| Cisco Firepower Threat Defense | <=6.2.2 | |
| 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 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-3458?
The severity of CVE-2020-3458 is medium with a CVSS score of 6.7.
How can an attacker exploit CVE-2020-3458?
An attacker can exploit CVE-2020-3458 by bypassing the secure boot mechanism on affected Cisco ASA and FTD appliances.
Which Cisco products are affected by CVE-2020-3458?
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for the Firepower 1000 Series and Firepower 2100 Series Appliances are affected.
What is the recommended version to fix CVE-2020-3458?
To fix CVE-2020-3458, it is recommended to upgrade Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software to versions 9.8.4.26, 9.9.2.80, 9.10.1.43, 9.12.4.3, 9.13.1.13, or 9.14.1.15.
Where can I find more information about CVE-2020-3458?
More information about CVE-2020-3458 can be found in the Cisco Security Advisory: [link](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-sbbyp-KqP6NgrE).
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