CVE-2021-1441 Detail
Current Description
A vulnerability in the hardware initialization routines of Cisco IOS XE Software for Cisco 1100 Series Industrial Integrated Services Routers and Cisco ESR6300 Embedded Series Routers could allow an authenticated, local attacker to execute unsigned code at system boot time. This vulnerability is due to incorrect validations of parameters passed to a diagnostic script that is executed when the device boots up. An attacker could exploit this vulnerability by tampering with an executable file stored on a device. 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. To exploit this vulnerability, the attacker would need administrative level credentials (level 15) on the device.
Analysis Description
A vulnerability in the hardware initialization routines of Cisco IOS XE Software for Cisco 1100 Series Industrial Integrated Services Routers and Cisco ESR6300 Embedded Series Routers could allow an authenticated, local attacker to execute unsigned code at system boot time. This vulnerability is due to incorrect validations of parameters passed to a diagnostic script that is executed when the device boots up. An attacker could exploit this vulnerability by tampering with an executable file stored on a device. 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. To exploit this vulnerability, the attacker would need administrative level credentials (level 15) on the device.
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command (‘OS Command Injection’) | NIST Cisco Systems, Inc. |
Change History
2 change records found show changes
Initial Analysis 3/29/2021 3:43:03 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CPE Configuration | Record truncated, showing 500 of 1820 characters. View Entire Change Record OR
*cpe:2.3:a:oracle:cisco_ios_xe_software:3.15.1xbs:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:cisco_ios_xe_software:3.15.2xbs:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:cisco_ios_xe_software:16.9.1:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:cisco_ios_xe_software:16.9.1c:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:cisco_ios_xe_software:16.10.1:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:cisco_ios_xe_software:16.10.1e:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:cisco_ios_xe_software:16.11.1:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:c
|
|
| Added | CVSS V2 |
NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) |
|
| Added | CVSS V3.1 |
NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
|
| Added | CWE |
NIST CWE-78 |
|
| Changed | Reference Type |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-iot-codexec-k46EFF6q No Types Assigned |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-iot-codexec-k46EFF6q Vendor Advisory |
CVE Modified by Cisco Systems, Inc. 3/24/2021 5:15:14 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Changed | Description | Record truncated, showing 500 of 822 characters. View Entire Change Record A vulnerability in the hardware initialization routines of Cisco IOS XE Software for Cisco 1100 Series Industrial Integrated Services Routers and Cisco ESR6300 Embedded Series Routers could allow an authenticated, local attacker to execute unsigned code at system boot time. This vulnerability is due to incorrect validations of parameters passed to a diagnostic script that is executed when the device boots up. An attacker could exploit this vulnerability by tampering with an executable file st |
Record truncated, showing 500 of 816 characters. View Entire Change Record A vulnerability in the hardware initialization routines of Cisco IOS XE Software for Cisco 1100 Series Industrial Integrated Services Routers and Cisco ESR6300 Embedded Series Routers could allow an authenticated, local attacker to execute unsigned code at system boot time. This vulnerability is due to incorrect validations of parameters passed to a diagnostic script that is executed when the device boots up. An attacker could exploit this vulnerability by tampering with an executable file store |
Quick Info
CVE Dictionary Entry:
CVE-2021-1441
NVD Published Date:
03/24/2021
NVD Last Modified:
03/29/2021
Source:
Cisco Systems, Inc.