Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-1398

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.

Published

2021-03-24T20:15:14.213

Last Modified

2024-11-21T05:44:15.817

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.4

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-489
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 3.7.0bs Yes
Operating System cisco ios_xe 3.7.0s Yes
Operating System cisco ios_xe 3.7.0xas Yes
Operating System cisco ios_xe 3.7.0xbs Yes
Operating System cisco ios_xe 3.7.1as Yes
Operating System cisco ios_xe 3.7.1s Yes
Operating System cisco ios_xe 3.7.2s Yes
Operating System cisco ios_xe 3.7.2ts Yes
Operating System cisco ios_xe 3.7.3s Yes
Operating System cisco ios_xe 3.7.4as Yes
Operating System cisco ios_xe 3.7.4s Yes
Operating System cisco ios_xe 3.7.5s Yes
Operating System cisco ios_xe 3.7.6s Yes
Operating System cisco ios_xe 3.7.7s Yes
Operating System cisco ios_xe 3.7.8s Yes
Operating System cisco ios_xe 3.8.0s Yes
Operating System cisco ios_xe 3.8.1s Yes
Operating System cisco ios_xe 3.8.2s Yes
Operating System cisco ios_xe 3.9.0as Yes
Operating System cisco ios_xe 3.9.0s Yes
Operating System cisco ios_xe 3.9.0xas Yes
Operating System cisco ios_xe 3.9.1as Yes
Operating System cisco ios_xe 3.9.1s Yes
Operating System cisco ios_xe 3.9.2s Yes
Operating System cisco ios_xe 3.10.0s Yes
Operating System cisco ios_xe 3.10.1s Yes
Operating System cisco ios_xe 3.10.1xbs Yes
Operating System cisco ios_xe 3.10.1xcs Yes
Operating System cisco ios_xe 3.10.2as Yes
Operating System cisco ios_xe 3.10.2s Yes
Operating System cisco ios_xe 3.10.2ts Yes
Operating System cisco ios_xe 3.10.3s Yes
Operating System cisco ios_xe 3.10.4s Yes
Operating System cisco ios_xe 3.10.5s Yes
Operating System cisco ios_xe 3.10.6s Yes
Operating System cisco ios_xe 3.10.7s Yes
Operating System cisco ios_xe 3.10.8as Yes
Operating System cisco ios_xe 3.10.8s Yes
Operating System cisco ios_xe 3.10.9s Yes
Operating System cisco ios_xe 3.10.10s Yes
Operating System cisco ios_xe 3.11.0s Yes
Operating System cisco ios_xe 3.11.1s Yes
Operating System cisco ios_xe 3.11.2s Yes
Operating System cisco ios_xe 3.11.3s Yes
Operating System cisco ios_xe 3.11.4s Yes
Operating System cisco ios_xe 3.12.0as Yes
Operating System cisco ios_xe 3.12.0s Yes
Operating System cisco ios_xe 3.12.1s Yes
Operating System cisco ios_xe 3.12.2s Yes
Operating System cisco ios_xe 3.12.3s Yes
Operating System cisco ios_xe 3.12.4s Yes
Operating System cisco ios_xe 3.13.0as Yes
Operating System cisco ios_xe 3.13.0s Yes
Operating System cisco ios_xe 3.13.1s Yes
Operating System cisco ios_xe 3.13.2as Yes
Operating System cisco ios_xe 3.13.2s Yes
Operating System cisco ios_xe 3.13.3s Yes
Operating System cisco ios_xe 3.13.4s Yes
Operating System cisco ios_xe 3.13.5as Yes
Operating System cisco ios_xe 3.13.5s Yes
Operating System cisco ios_xe 3.13.6as Yes
Operating System cisco ios_xe 3.13.6bs Yes
Operating System cisco ios_xe 3.13.6s Yes
Operating System cisco ios_xe 3.13.7as Yes
Operating System cisco ios_xe 3.13.7s Yes
Operating System cisco ios_xe 3.13.8s Yes
Operating System cisco ios_xe 3.13.9s Yes
Operating System cisco ios_xe 3.13.10s Yes
Operating System cisco ios_xe 3.14.0s Yes
Operating System cisco ios_xe 3.14.1s Yes
Operating System cisco ios_xe 3.14.2s Yes
Operating System cisco ios_xe 3.14.3s Yes
Operating System cisco ios_xe 3.14.4s Yes
Operating System cisco ios_xe 3.15.0s Yes
Operating System cisco ios_xe 3.15.1cs Yes
Operating System cisco ios_xe 3.15.1s Yes
Operating System cisco ios_xe 3.15.1xbs Yes
Operating System cisco ios_xe 3.15.2s Yes
Operating System cisco ios_xe 3.15.2xbs Yes
Operating System cisco ios_xe 3.15.3s Yes
Operating System cisco ios_xe 3.15.4s Yes
Operating System cisco ios_xe 3.16.0as Yes
Operating System cisco ios_xe 3.16.0bs Yes
Operating System cisco ios_xe 3.16.0cs Yes
Operating System cisco ios_xe 3.16.0s Yes
Operating System cisco ios_xe 3.16.1as Yes
Operating System cisco ios_xe 3.16.1s Yes
Operating System cisco ios_xe 3.16.2as Yes
Operating System cisco ios_xe 3.16.2bs Yes
Operating System cisco ios_xe 3.16.2s Yes
Operating System cisco ios_xe 3.16.3as Yes
Operating System cisco ios_xe 3.16.3s Yes
Operating System cisco ios_xe 3.16.4as Yes
Operating System cisco ios_xe 3.16.4bs Yes
Operating System cisco ios_xe 3.16.4cs Yes
Operating System cisco ios_xe 3.16.4ds Yes
Operating System cisco ios_xe 3.16.4es Yes
Operating System cisco ios_xe 3.16.4gs Yes
Operating System cisco ios_xe 3.16.4s Yes
Operating System cisco ios_xe 3.16.5as Yes
Operating System cisco ios_xe 3.16.5bs Yes
Operating System cisco ios_xe 3.16.5s Yes
Operating System cisco ios_xe 3.16.6bs Yes
Operating System cisco ios_xe 3.16.6s Yes
Operating System cisco ios_xe 3.16.7as Yes
Operating System cisco ios_xe 3.16.7bs Yes
Operating System cisco ios_xe 3.16.7s Yes
Operating System cisco ios_xe 3.16.8s Yes
Operating System cisco ios_xe 3.16.9s Yes
Operating System cisco ios_xe 3.16.10as Yes
Operating System cisco ios_xe 3.16.10s Yes
Operating System cisco ios_xe 3.17.0s Yes
Operating System cisco ios_xe 3.17.1as Yes
Operating System cisco ios_xe 3.17.1s Yes
Operating System cisco ios_xe 3.17.2s Yes
Operating System cisco ios_xe 3.17.3s Yes
Operating System cisco ios_xe 3.17.4s Yes
Operating System cisco ios_xe 3.18.0as Yes
Operating System cisco ios_xe 3.18.0s Yes
Operating System cisco ios_xe 3.18.0sp Yes
Operating System cisco ios_xe 3.18.1asp Yes
Operating System cisco ios_xe 3.18.1bsp Yes
Operating System cisco ios_xe 3.18.1csp Yes
Operating System cisco ios_xe 3.18.1gsp Yes
Operating System cisco ios_xe 3.18.1hsp Yes
Operating System cisco ios_xe 3.18.1isp Yes
Operating System cisco ios_xe 3.18.1s Yes
Operating System cisco ios_xe 3.18.1sp Yes
Operating System cisco ios_xe 3.18.2asp Yes
Operating System cisco ios_xe 3.18.2s Yes
Operating System cisco ios_xe 3.18.2sp Yes
Operating System cisco ios_xe 3.18.3asp Yes
Operating System cisco ios_xe 3.18.3bsp Yes
Operating System cisco ios_xe 3.18.3s Yes
Operating System cisco ios_xe 3.18.3sp Yes
Operating System cisco ios_xe 3.18.4s Yes
Operating System cisco ios_xe 3.18.4sp Yes
Operating System cisco ios_xe 3.18.5sp Yes
Operating System cisco ios_xe 3.18.6sp Yes
Operating System cisco ios_xe 3.18.7sp Yes
Operating System cisco ios_xe 3.18.8asp Yes
Operating System cisco ios_xe 3.18.8sp Yes
Operating System cisco ios_xe 16.1.1 Yes
Operating System cisco ios_xe 16.1.2 Yes
Operating System cisco ios_xe 16.1.3 Yes
Operating System cisco ios_xe 16.2.1 Yes
Operating System cisco ios_xe 16.2.2 Yes
Operating System cisco ios_xe 16.3.1 Yes
Operating System cisco ios_xe 16.3.1a Yes
Operating System cisco ios_xe 16.3.2 Yes
Operating System cisco ios_xe 16.3.3 Yes
Operating System cisco ios_xe 16.3.4 Yes
Operating System cisco ios_xe 16.3.5 Yes
Operating System cisco ios_xe 16.3.5b Yes
Operating System cisco ios_xe 16.3.6 Yes
Operating System cisco ios_xe 16.3.7 Yes
Operating System cisco ios_xe 16.3.8 Yes
Operating System cisco ios_xe 16.3.9 Yes
Operating System cisco ios_xe 16.3.10 Yes
Operating System cisco ios_xe 16.4.1 Yes
Operating System cisco ios_xe 16.4.2 Yes
Operating System cisco ios_xe 16.4.3 Yes
Operating System cisco ios_xe 16.5.1 Yes
Operating System cisco ios_xe 16.5.1a Yes
Operating System cisco ios_xe 16.5.1b Yes
Operating System cisco ios_xe 16.5.2 Yes
Operating System cisco ios_xe 16.5.3 Yes
Operating System cisco ios_xe 16.6.1 Yes
Operating System cisco ios_xe 16.6.2 Yes
Operating System cisco ios_xe 16.6.3 Yes
Operating System cisco ios_xe 16.6.4 Yes
Operating System cisco ios_xe 16.6.4a Yes
Operating System cisco ios_xe 16.6.4s Yes
Operating System cisco ios_xe 16.6.5 Yes
Operating System cisco ios_xe 16.6.5a Yes
Operating System cisco ios_xe 16.6.5b Yes
Operating System cisco ios_xe 16.6.6 Yes
Operating System cisco ios_xe 16.6.7 Yes
Operating System cisco ios_xe 16.6.7a Yes
Operating System cisco ios_xe 16.6.8 Yes
Operating System cisco ios_xe 16.7.1 Yes
Operating System cisco ios_xe 16.7.1a Yes
Operating System cisco ios_xe 16.7.1b Yes
Operating System cisco ios_xe 16.7.2 Yes
Operating System cisco ios_xe 16.7.3 Yes
Operating System cisco ios_xe 16.7.4 Yes
Operating System cisco ios_xe 16.8.1 Yes
Operating System cisco ios_xe 16.8.1a Yes
Operating System cisco ios_xe 16.8.1b Yes
Operating System cisco ios_xe 16.8.1c Yes
Operating System cisco ios_xe 16.8.1d Yes
Operating System cisco ios_xe 16.8.1e Yes
Operating System cisco ios_xe 16.8.1s Yes
Operating System cisco ios_xe 16.8.2 Yes
Operating System cisco ios_xe 16.8.3 Yes
Operating System cisco ios_xe 16.9.1 Yes
Operating System cisco ios_xe 16.9.1a Yes
Operating System cisco ios_xe 16.9.1b Yes
Operating System cisco ios_xe 16.9.1c Yes
Operating System cisco ios_xe 16.9.1d Yes
Operating System cisco ios_xe 16.9.1s Yes
Operating System cisco ios_xe 16.9.2 Yes
Operating System cisco ios_xe 16.9.2a Yes
Operating System cisco ios_xe 16.9.2s Yes
Operating System cisco ios_xe 16.9.3 Yes
Operating System cisco ios_xe 16.9.3a Yes
Operating System cisco ios_xe 16.9.3h Yes
Operating System cisco ios_xe 16.9.3s Yes
Operating System cisco ios_xe 16.9.4 Yes
Operating System cisco ios_xe 16.9.4c Yes
Operating System cisco ios_xe 16.9.5 Yes
Operating System cisco ios_xe 16.9.5f Yes
Operating System cisco ios_xe 16.10.1 Yes
Operating System cisco ios_xe 16.10.1a Yes
Operating System cisco ios_xe 16.10.1b Yes
Operating System cisco ios_xe 16.10.1c Yes
Operating System cisco ios_xe 16.10.1d Yes
Operating System cisco ios_xe 16.10.1e Yes
Operating System cisco ios_xe 16.10.1f Yes
Operating System cisco ios_xe 16.10.1g Yes
Operating System cisco ios_xe 16.10.1s Yes
Operating System cisco ios_xe 16.10.2 Yes
Operating System cisco ios_xe 16.10.3 Yes
Operating System cisco ios_xe 16.11.1 Yes
Operating System cisco ios_xe 16.11.1a Yes
Operating System cisco ios_xe 16.11.1b Yes
Operating System cisco ios_xe 16.11.1c Yes
Operating System cisco ios_xe 16.11.1s Yes
Operating System cisco ios_xe 16.11.2 Yes
Operating System cisco ios_xe 16.12.1 Yes
Operating System cisco ios_xe 16.12.1a Yes
Operating System cisco ios_xe 16.12.1c Yes
Operating System cisco ios_xe 16.12.1s Yes
Operating System cisco ios_xe 16.12.1t Yes
Operating System cisco ios_xe 16.12.1w Yes
Operating System cisco ios_xe 16.12.1x Yes
Operating System cisco ios_xe 16.12.1y Yes
Operating System cisco ios_xe 16.12.1z Yes
Operating System cisco ios_xe 16.12.1za Yes
Operating System cisco ios_xe 16.12.2 Yes
Operating System cisco ios_xe 16.12.2a Yes
Operating System cisco ios_xe 16.12.2s Yes
Operating System cisco ios_xe 16.12.2t Yes
Operating System cisco ios_xe 16.12.3 Yes
Operating System cisco ios_xe 16.12.3a Yes
Operating System cisco ios_xe 16.12.3s Yes
Operating System cisco ios_xe 16.12.4 Yes
Operating System cisco ios_xe 16.12.4a Yes
Operating System cisco ios_xe 17.1.1 Yes
Operating System cisco ios_xe 17.1.1a Yes
Operating System cisco ios_xe 17.1.1s Yes
Operating System cisco ios_xe 17.1.1t Yes
Operating System cisco ios_xe 17.1.2 Yes
Operating System cisco ios_xe 17.2.1 Yes
Operating System cisco ios_xe 17.2.1a Yes
Operating System cisco ios_xe 17.2.1r Yes
Operating System cisco ios_xe 17.2.1v Yes
References