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CVE-2021-34723

Cisco IOS XE SD-WAN Software Arbitrary File Overwrite Vulnerability

Published: Sep 23, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-668
NVD MITRE
6.7CVSSMEDIUM
EPSS Score
0.2%
Top 85.6%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-668

Affected Products

Cisco IOS XE SoftwareCiscoNetworking Infrastructure
Cisco IOS XE SD-WANCisco Systems Inc.Networking Infrastructure
ios xecisco
On-premFirmware
Networking Infrastructure / router-switch
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-arbfileov-MVOF3ZZn
tools.cisco.com
https://www.cybersecurity-help.cz/vdb/SB2021092413
cybersecurity-help.cz

Timeline

Published
Sep 23, 2021
Last Updated
Nov 21, 2024

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