Vulnerability Monitor

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CVE-2021-34723

A vulnerability in a specific CLI command that is run on Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the configuration database of an affected device. This vulnerability is due to insufficient validation of specific CLI command parameters. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of the configuration database and gain root-level access to an affected device.

Published

2021-09-23T03:15:18.427

Last Modified

2024-11-21T06:11:03.147

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.7 (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-668
  • Type: Primary
    CWE-668
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 17.3.1a Yes
Hardware cisco asr_1000-x - No
Hardware cisco asr_1001 - No
Hardware cisco asr_1001-x - No
Hardware cisco asr_1002 - No
Hardware cisco asr_1002-x - No
Hardware cisco asr_1004 - No
Hardware cisco asr_1006 - No
Hardware cisco asr_1013 - No
Hardware cisco asr_1023 - No
Operating System cisco ios_xe 17.3.1a Yes
Hardware cisco 4321_integrated_services_router - No
Hardware cisco 4331_integrated_services_router - No
Hardware cisco 4351_integrated_services_router - No
Hardware cisco 4431_integrated_services_router - No
Operating System cisco ios_xe 17.3.1a Yes
Hardware cisco 1100-4g_integrated_services_router - No
Hardware cisco 1100-4gltegb_integrated_services_router - No
Hardware cisco 1100-4gltena_integrated_services_router - No
Hardware cisco 1100-6g_integrated_services_router - No
Hardware cisco 1100-lte_integrated_services_router - No
Hardware cisco 1100_integrated_services_router - No
Operating System cisco ios_xe 17.3.1a Yes
Hardware cisco csr1000v - No
References