CVE-2021-34724

MEDIUM

6.0

Description

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.

CVE Details

CVSS v3.1 Score6.0

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published9/23/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

cisco:1000_integrated_services_routercisco:1100-4g\/6g_integrated_services_routercisco:1100-4p_integrated_services_routercisco:1100-8p_integrated_services_routercisco:1100_integrated_services_routercisco:1101-4p_integrated_services_routercisco:1101_integrated_services_routercisco:1109-2p_integrated_services_routercisco:1109-4p_integrated_services_routercisco:1109_integrated_services_routercisco:1111x-8p_integrated_services_routercisco:1111x_integrated_services_routercisco:111x_integrated_services_routercisco:1120_integrated_services_routercisco:1160_integrated_services_routercisco:4000_integrated_services_routercisco:4221_integrated_services_routercisco:422_integrated_services_routercisco:4321_integrated_services_routercisco:4331_integrated_services_routercisco:4351_integrated_services_routercisco:4431_integrated_services_routercisco:4451-x_integrated_services_routercisco:4451_integrated_services_routercisco:4461_integrated_services_routercisco:asr_1000cisco:asr_1000-esp100cisco:asr_1000-xcisco:asr_1000_seriescisco:asr_1000_series_route_processor_\(rp2\)cisco:asr_1000_series_route_processor_\(rp3\)cisco:asr_1001cisco:asr_1001-hxcisco:asr_1001-hx_rcisco:asr_1001-xcisco:asr_1001-x_rcisco:asr_1002cisco:asr_1002-hxcisco:asr_1002-hx_rcisco:asr_1002-xcisco:asr_1002-x_rcisco:asr_1004cisco:asr_1006cisco:asr_1006-xcisco:asr_1009-xcisco:asr_1013cisco:asr_1023cisco:csr_1000vcisco:ios_xe_sd-wan

Weaknesses (CWE)

CWE-284

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-privesc-VP4FG3jD(psirt@cisco.com)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-privesc-VP4FG3jD(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.