Vulnerability Monitor

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CVE-2021-34724

A vulnerability in the Cisco IOS XE SD-WAN Software CLI could allow an authenticated, local attacker to elevate privileges and execute arbitrary code on the underlying operating system as the root user. An attacker must be authenticated on an affected device as a PRIV15 user. This vulnerability is due to insufficient file system protection and the presence of a sensitive file in the bootflash directory on an affected device. An attacker could exploit this vulnerability by overwriting an installer file stored in the bootflash directory with arbitrary commands that can be executed with root-level privileges. A successful exploit could allow the attacker to read and write changes to the configuration database on the affected device.

Published

2021-09-23T03:15:18.813

Last Modified

2024-11-21T06:11:03.303

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.0 (MEDIUM)

CVSSv2 Vector

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

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

3.9

Impact Score

9.2

Weaknesses
  • Type: Secondary
    CWE-284
  • Type: Primary
    NVD-CWE-Other
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe_sd-wan ≤ 17.3.1a Yes
Hardware cisco 1000_integrated_services_router - No
Hardware cisco 1100-4g\/6g_integrated_services_router - No
Hardware cisco 1100-4p_integrated_services_router - No
Hardware cisco 1100-8p_integrated_services_router - No
Hardware cisco 1100_integrated_services_router - No
Hardware cisco 1101-4p_integrated_services_router - No
Hardware cisco 1101_integrated_services_router - No
Hardware cisco 1109-2p_integrated_services_router - No
Hardware cisco 1109-4p_integrated_services_router - No
Hardware cisco 1109_integrated_services_router - No
Hardware cisco 1111x-8p_integrated_services_router - No
Hardware cisco 1111x_integrated_services_router - No
Hardware cisco 111x_integrated_services_router - No
Hardware cisco 1120_integrated_services_router - No
Hardware cisco 1160_integrated_services_router - No
Hardware cisco 4000_integrated_services_router - No
Hardware cisco 422_integrated_services_router - No
Hardware cisco 4221_integrated_services_router - No
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
Hardware cisco 4451-x_integrated_services_router - No
Hardware cisco 4451_integrated_services_router - No
Hardware cisco 4461_integrated_services_router - No
Hardware cisco asr_1000 - No
Hardware cisco asr_1000-esp100 - No
Hardware cisco asr_1000-x - No
Hardware cisco asr_1000_series - No
Hardware cisco asr_1000_series_route_processor_\(rp2\) - No
Hardware cisco asr_1000_series_route_processor_\(rp3\) - No
Hardware cisco asr_1001 - No
Hardware cisco asr_1001-hx - No
Hardware cisco asr_1001-hx_r - No
Hardware cisco asr_1001-x - No
Hardware cisco asr_1001-x_r - No
Hardware cisco asr_1002 - No
Hardware cisco asr_1002-hx - No
Hardware cisco asr_1002-hx_r - No
Hardware cisco asr_1002-x - No
Hardware cisco asr_1002-x_r - No
Hardware cisco asr_1004 - No
Hardware cisco asr_1006 - No
Hardware cisco asr_1006-x - No
Hardware cisco asr_1009-x - No
Hardware cisco asr_1013 - No
Hardware cisco asr_1023 - No
Hardware cisco csr_1000v - No
References