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CVE-2020-3458

MEDIUMCVSS 6.7/10EPSS 0.32%

Last modified

CVE-2020-3458 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
6.7/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS 3.0
6.7/10

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.32%

24.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAdaptive Security Appliance Software>= 9.8.0, < 9.8.4.26
CiscoAdaptive Security Appliance Software>= 9.9.0, < 9.9.2.80
CiscoAdaptive Security Appliance Software>= 9.10.0, < 9.10.1.43
CiscoAdaptive Security Appliance Software>= 9.12.0, < 9.12.4.3
CiscoAdaptive Security Appliance Software>= 9.13.0, < 9.13.1.13
CiscoAdaptive Security Appliance Software>= 9.14.0, < 9.14.1.15
CiscoSecure Firewall Threat Defense<= 6.2.2
CiscoSecure Firewall Threat Defense>= 6.3.0, < 6.3.0.6
CiscoSecure Firewall Threat Defense>= 6.4.0, < 6.4.0.10
CiscoSecure Firewall Threat Defense>= 6.5.0, < 6.5.0.5
CiscoSecure Firewall Threat Defense6.6.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-3458?
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.
How severe is CVE-2020-3458?
CVE-2020-3458 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2020-3458?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST