CVE-2021-1441
"Cisco Industrial Integrated Services Routers and Embedded Series Routers Boot Time Code Execution Vulnerability"
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.
INFO
Published Date :
March 24, 2021, 8:15 p.m.
Last Modified :
Nov. 7, 2023, 3:28 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-1441.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-iot-codexec-k46EFF6q | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-1441 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-1441 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 Cisco Systems, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H -
Reanalysis by [email protected]
Sep. 12, 2022
Action Type Old Value New Value Changed CPE Configuration 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:cisco_ios_xe_software:16.11.1c:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.11.1s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1c:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1za:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.2:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.2s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.2t:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.3:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.3s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.4:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.1s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.1t:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.2:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.1r:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.1v:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.3:*:*:*:*:*:*:* AND OR *cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.9.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.9.1c:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1za:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.4:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.1.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.1.1s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.1.1t:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.1.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:17.2.3:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:esr6300:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ir1101:-:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Mar. 29, 2021
Action Type Old Value New Value 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 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 Added CWE NIST CWE-78 Added CPE Configuration 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:cisco_ios_xe_software:16.11.1c:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.11.1s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1c:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.1za:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.2:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.2s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.2t:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.3:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.3s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:16.12.4:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.1s:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.1t:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.1.2:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.1r:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.1v:*:*:*:*:*:*:* *cpe:2.3:a:oracle:cisco_ios_xe_software:17.2.3:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 24, 2021
Action Type Old Value New Value Changed 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. 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-1441 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-1441
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05784
percentile