CVE-2020-3455
Cisco FXOS Software for Firepower 4100/9300 Series Appliances Secure Boot Bypass Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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 which would be executed at each boot and maintain persistence across reboots.
Una vulnerabilidad en el proceso de arranque seguro de Cisco FXOS Software, podría permitir a un atacante local autenticado omitir los mecanismos de arranque seguro. La vulnerabilidad es debido a unas protecciones insuficientes del proceso de arranque seguro. Un atacante podría explotar esta vulnerabilidad al inyectar código en un archivo específico al que luego se hace referencia durante el proceso de arranque del dispositivo. Una explotación con éxito podría permitir a un atacante romper la cadena de confianza e inyectar código en el proceso de arranque del dispositivo que podría ser ejecutado en cada arranque y mantendría la persistencia entre los reinicios
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-12-12 CVE Reserved
- 2020-10-21 CVE Published
- 2023-03-08 EPSS Updated
- 2024-09-16 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-693: Protection Mechanism Failure
CAPEC
References (1)
URL | Tag | Source |
---|
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-sbbp-XTuPkYTn | 2020-10-28 |
URL | Date | SRC |
---|
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4110 Search vendor "Cisco" for product "Firepower 4110" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4112 Search vendor "Cisco" for product "Firepower 4112" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4115 Search vendor "Cisco" for product "Firepower 4115" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4120 Search vendor "Cisco" for product "Firepower 4120" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4125 Search vendor "Cisco" for product "Firepower 4125" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4140 Search vendor "Cisco" for product "Firepower 4140" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4145 Search vendor "Cisco" for product "Firepower 4145" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4150 Search vendor "Cisco" for product "Firepower 4150" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-24 Search vendor "Cisco" for product "Firepower 9300 Sm-24" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-36 Search vendor "Cisco" for product "Firepower 9300 Sm-36" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-40 Search vendor "Cisco" for product "Firepower 9300 Sm-40" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-44 Search vendor "Cisco" for product "Firepower 9300 Sm-44" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-44 X 3 Search vendor "Cisco" for product "Firepower 9300 Sm-44 X 3" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-48 Search vendor "Cisco" for product "Firepower 9300 Sm-48" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-56 Search vendor "Cisco" for product "Firepower 9300 Sm-56" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | < 2.4.1.268 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " < 2.4.1.268" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-56 X 3 Search vendor "Cisco" for product "Firepower 9300 Sm-56 X 3" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4110 Search vendor "Cisco" for product "Firepower 4110" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4112 Search vendor "Cisco" for product "Firepower 4112" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4115 Search vendor "Cisco" for product "Firepower 4115" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4120 Search vendor "Cisco" for product "Firepower 4120" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4125 Search vendor "Cisco" for product "Firepower 4125" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4140 Search vendor "Cisco" for product "Firepower 4140" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4145 Search vendor "Cisco" for product "Firepower 4145" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4150 Search vendor "Cisco" for product "Firepower 4150" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-24 Search vendor "Cisco" for product "Firepower 9300 Sm-24" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-36 Search vendor "Cisco" for product "Firepower 9300 Sm-36" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-40 Search vendor "Cisco" for product "Firepower 9300 Sm-40" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-44 Search vendor "Cisco" for product "Firepower 9300 Sm-44" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-44 X 3 Search vendor "Cisco" for product "Firepower 9300 Sm-44 X 3" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-48 Search vendor "Cisco" for product "Firepower 9300 Sm-48" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-56 Search vendor "Cisco" for product "Firepower 9300 Sm-56" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.6 < 2.6.1.214 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.6 < 2.6.1.214" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-56 X 3 Search vendor "Cisco" for product "Firepower 9300 Sm-56 X 3" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4110 Search vendor "Cisco" for product "Firepower 4110" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4112 Search vendor "Cisco" for product "Firepower 4112" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4115 Search vendor "Cisco" for product "Firepower 4115" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4120 Search vendor "Cisco" for product "Firepower 4120" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4125 Search vendor "Cisco" for product "Firepower 4125" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4140 Search vendor "Cisco" for product "Firepower 4140" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4145 Search vendor "Cisco" for product "Firepower 4145" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 4150 Search vendor "Cisco" for product "Firepower 4150" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-24 Search vendor "Cisco" for product "Firepower 9300 Sm-24" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-36 Search vendor "Cisco" for product "Firepower 9300 Sm-36" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-40 Search vendor "Cisco" for product "Firepower 9300 Sm-40" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-44 Search vendor "Cisco" for product "Firepower 9300 Sm-44" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-44 X 3 Search vendor "Cisco" for product "Firepower 9300 Sm-44 X 3" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-48 Search vendor "Cisco" for product "Firepower 9300 Sm-48" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-56 Search vendor "Cisco" for product "Firepower 9300 Sm-56" | - | - |
Safe
|
Cisco Search vendor "Cisco" | Firepower Extensible Operating System Search vendor "Cisco" for product "Firepower Extensible Operating System" | >= 2.7 < 2.7.1.131 Search vendor "Cisco" for product "Firepower Extensible Operating System" and version " >= 2.7 < 2.7.1.131" | - |
Affected
| in | Cisco Search vendor "Cisco" | Firepower 9300 Sm-56 X 3 Search vendor "Cisco" for product "Firepower 9300 Sm-56 X 3" | - | - |
Safe
|