CVE-2021-1441
Cisco IOS XE Software Hardware Initialization Routines Arbitrary Code Execution Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 0.32 % · percentile 25 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-6908
- GCVE · GCVE-0-2021-1441
CERT-FR advisories
- CERTFR-2021-AVI-219 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
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:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco IOS XE Software | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |