Vulnerability Monitor

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CVE-2021-1281

A vulnerability in CLI management in Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to access the underlying operating system as the root user. This vulnerability is due to the way the software handles concurrent CLI sessions. An attacker could exploit this vulnerability by authenticating to the device as an administrative user and executing a sequence of commands. A successful exploit could allow the attacker to obtain access to the underlying operating system as the root user.

Published

2021-03-24T21:15:11.443

Last Modified

2024-11-21T05:43:59.830

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.1 (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-399
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 16.9.1 Yes
Operating System cisco ios_xe 16.9.2 Yes
Operating System cisco ios_xe 16.9.3 Yes
Operating System cisco ios_xe 16.9.4 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 17.1.3 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
Operating System cisco ios_xe 17.2.2 Yes
Operating System cisco ios_xe 17.3.1 Yes
Operating System cisco ios_xe 17.3.1a Yes
Operating System cisco ios_xe 17.3.1w Yes
Operating System cisco ios_xe 17.3.2 Yes
Operating System cisco ios_xe 17.3.2a Yes
Operating System cisco ios_xe 17.4.1 Yes
Operating System cisco ios_xe 17.4.1a Yes
Operating System cisco ios_xe 17.4.1b Yes
References