CVE-2021-1449

Cisco Access Point Software Arbitrary Code Execution Vulnerability

Severity Score

6.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A vulnerability in the boot logic of Cisco Access Points Software could allow an authenticated, local attacker to execute unsigned code at boot time. The vulnerability is due to an improper check that is performed by the area of code that manages system startup processes. An attacker could exploit this vulnerability by modifying a specific file that is stored on the system, which would allow the attacker to bypass existing protections. A successful exploit could allow the attacker to execute unsigned code at boot time and bypass the software image verification check part of the secure boot process of an affected device. Note: To exploit this vulnerability, the attacker would need to have access to the development shell (devshell) on the device.

Una vulnerabilidad en la lógica de arranque del Software Cisco Access Points, podría permitir a un atacante local autenticado ejecutar código sin firmar en el momento del arranque. La vulnerabilidad es debido a una comprobación inapropiada que es llevada a cabo por el área de código que administra los procesos de inicio del sistema. Un atacante podría explotar esta vulnerabilidad al modificar un archivo específico que está almacenado en el sistema, lo que le permitiría omitir las protecciones existentes. Una explotación con éxito podría permitir al atacante ejecutar código sin firmar en el momento del arranque y omitir la comprobación de la imagen del software como parte del proceso de arranque seguro de un dispositivo afectado. Nota: Para explotar esta vulnerabilidad, el atacante debería tener acceso al shell de desarrollo (devshell) en el dispositivo

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2020-11-13 CVE Reserved
2021-03-24 CVE Published
2023-03-08 EPSS Updated
2024-11-08 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-privesc-wEVfp8Ud	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	1100 Integrated Services Router Search vendor "Cisco" for product "1100 Integrated Services Router"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1540 Search vendor "Cisco" for product "Aironet 1540"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1560 Search vendor "Cisco" for product "Aironet 1560"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 1800 Search vendor "Cisco" for product "Aironet 1800"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 2800 Search vendor "Cisco" for product "Aironet 2800"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 3800 Search vendor "Cisco" for product "Aironet 3800"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Aironet 4800 Search vendor "Cisco" for product "Aironet 4800"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9100 Search vendor "Cisco" for product "Catalyst 9100"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst Iw6300 Search vendor "Cisco" for product "Catalyst Iw6300"	-	-	Safe
Cisco Search vendor "Cisco"	Aironet Access Point Software Search vendor "Cisco" for product "Aironet Access Point Software"	-	-	Affected	in	Cisco Search vendor "Cisco"	Esw6300 Search vendor "Cisco" for product "Esw6300"	-	-	Safe
Cisco Search vendor "Cisco"	Catalyst 9800 Firmware Search vendor "Cisco" for product "Catalyst 9800 Firmware"	< 16.12.5 Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version " < 16.12.5"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9800 Search vendor "Cisco" for product "Catalyst 9800"	-	-	Safe
Cisco Search vendor "Cisco"	Catalyst 9800 Firmware Search vendor "Cisco" for product "Catalyst 9800 Firmware"	>= 17.1 < 17.3.3 Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version " >= 17.1 < 17.3.3"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9800 Search vendor "Cisco" for product "Catalyst 9800"	-	-	Safe
Cisco Search vendor "Cisco"	Catalyst 9800 Firmware Search vendor "Cisco" for product "Catalyst 9800 Firmware"	>= 17.4 < 17.5.1 Search vendor "Cisco" for product "Catalyst 9800 Firmware" and version " >= 17.4 < 17.5.1"	-	Affected	in	Cisco Search vendor "Cisco"	Catalyst 9800 Search vendor "Cisco" for product "Catalyst 9800"	-	-	Safe
Cisco Search vendor "Cisco"		Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"				< 8.5.171.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " < 8.5.171.0"		-		Affected
Cisco Search vendor "Cisco"		Wireless Lan Controller Software Search vendor "Cisco" for product "Wireless Lan Controller Software"				>= 8.6 < 8.10.150.0 Search vendor "Cisco" for product "Wireless Lan Controller Software" and version " >= 8.6 < 8.10.150.0"		-		Affected