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MEDIUM · 6.7

CVE-2021-1449

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...

Vulnerability Description

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.

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
CiscoAironet Access Point Software-
Cisco1100 Integrated Services Router-
CiscoAironet 1540-
CiscoAironet 1560-
CiscoAironet 1800-
CiscoAironet 2800-
CiscoAironet 3800-
CiscoAironet 4800-
CiscoCatalyst 9100-
CiscoCatalyst Iw6300-
CiscoEsw6300-
CiscoCatalyst 9800 Firmware< 16.12.5
CiscoCatalyst 9800-
CiscoWireless Lan Controller Software< 8.5.171.0

Related Weaknesses (CWE)

CWE-284

References

FAQ

What is CVE-2021-1449?

CVE-2021-1449 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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...

How severe is CVE-2021-1449?

CVE-2021-1449 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-1449?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Aironet Access Point Software, Cisco 1100 Integrated Services Router, Cisco Aironet 1540, Cisco Aironet 1560, Cisco Aironet 1800.