CVE-2023-20214: Buffer Overflow
First published: Thu Aug 03 2023(Updated: )
A vulnerability in the request authentication validation for the REST API of Cisco SD-WAN vManage software could allow an unauthenticated, remote attacker to gain read permissions or limited write permissions to the configuration of an affected Cisco SD-WAN vManage instance. This vulnerability is due to insufficient request validation when using the REST API feature. An attacker could exploit this vulnerability by sending a crafted API request to an affected vManage instance. A successful exploit could allow the attacker to retrieve information from and send information to the configuration of the affected Cisco vManage instance. This vulnerability only affects the REST API and does not affect the web-based management interface or the CLI.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Catalyst SD-WAN Manager | >=20.6.4<20.6.4.2 | |
| Cisco Catalyst SD-WAN Manager | >=20.6.5<20.6.5.5 | |
| Cisco Catalyst SD-WAN Manager | >=20.7<20.9.3.2 | |
| Cisco Catalyst SD-WAN Manager | >=20.11<20.11.1.2 | |
| Cisco Catalyst SD-WAN Manager | =20.6.3.3 | |
| Cisco SD-WAN vManage | >=20.10<20.10.1.2 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2023-20214?
CVE-2023-20214 is a vulnerability in the request authentication validation for the REST API of Cisco SD-WAN vManage software.
How does CVE-2023-20214 affect Cisco SD-WAN vManage?
CVE-2023-20214 allows an unauthenticated, remote attacker to gain read permissions or limited write permissions to the configuration of an affected Cisco SD-WAN vManage instance.
What is the severity of CVE-2023-20214?
The severity of CVE-2023-20214 is critical, with a CVSS score of 9.1.
Which versions of Cisco SD-WAN vManage are affected by CVE-2023-20214?
Versions 20.6.4.2 to 20.6.4, 20.6.5.5 to 20.6.5, 20.7 to 20.9.3.2, 20.10 to 20.10.1.2, and 20.11 to 20.11.1.2 of Cisco SD-WAN vManage are affected by CVE-2023-20214.
How can I fix CVE-2023-20214?
To fix CVE-2023-20214, it is recommended to upgrade Cisco SD-WAN vManage to a version that is not affected by the vulnerability.
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