CVE-2020-3455

CWE-6934 documents4 sources
Severity
7.8HIGH
EPSS
0.1%
top 80.64%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedOct 21
Latest updateMay 24

Description

A vulnerability in the secure boot process of Cisco FXOS Software could allow an authenticated, local attacker to bypass the secure boot mechanisms. The vulnerability is due to insufficient protections of the secure boot process. An attacker could exploit this vulnerability by injecting code into a specific file that is 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 whic

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

Patches

🔴Vulnerability Details

2
GHSA
GHSA-4c77-wcw2-9gh7: A vulnerability in the secure boot process of Cisco FXOS Software could allow an authenticated, local attacker to bypass the secure boot mechanisms2022-05-24
CVEList
Cisco FXOS Software for Firepower 4100/9300 Series Appliances Secure Boot Bypass Vulnerability2020-10-21

📋Vendor Advisories

1
Cisco
Cisco FXOS Software for Firepower 4100/9300 Series Appliances Secure Boot Bypass Vulnerability2020-10-21