Vulnerability Monitor

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CVE-2021-1435

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to inject arbitrary commands that can be executed as the root user. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted request to the web UI of an affected device with arbitrary commands injected into a portion of the request. A successful exploit could allow the attacker to execute arbitrary commands as the root user.

Published

2021-03-24T20:15:14.760

Last Modified

2024-11-21T05:44:21.453

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.2 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

8.0

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-22
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
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 16.9.6 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 17.2.1v Yes
References