A vulnerability in the boot logic of Cisco IOS XE Software could allow an authenticated, local attacker with level 15 privileges or an unauthenticated attacker with physical access to execute arbitrary code on the underlying Linux operating system of an affected device. This vulnerability is due to incorrect validations of specific function arguments that are passed to the boot script. An attacker could exploit this vulnerability by tampering with a specific file, which an affected device would process during the initial boot process. On systems that are protected by the Unified Extensible Firmware Interface (UEFI) secure boot feature, a successful exploit could allow the attacker to execute unsigned code at boot time and bypass the image verification check in the secure boot process of the affected device.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-XE-ACE-75K3bRWe | Vendor Advisory |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-XE-ACE-75K3bRWe | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:44
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-XE-ACE-75K3bRWe - Vendor Advisory |
Information
Published : 2021-03-24 20:15
Updated : 2024-11-21 05:44
NVD link : CVE-2021-1398
Mitre link : CVE-2021-1398
CVE.ORG link : CVE-2021-1398
JSON object : View
Products Affected
cisco
- ios_xe
CWE
CWE-489
Active Debug Code