cisco-sa-sdw-auth-bypass-65aYqcS2: Cisco SD-WAN vManage Software Authentication Bypass Vulnerability

Published May 5, 2021
·
Updated

A vulnerability in the web-based messaging service interface of Cisco SD-WAN vManage Software could allow an unauthenticated, adjacent attacker to bypass authentication and authorization and modify the configuration of an affected system. To exploit this vulnerability, the attacker must be able to access an associated Cisco SD-WAN vEdge device. This vulnerability is due to insufficient authorization checks. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based messaging service interface of an affected system. A successful exploit could allow the attacker to gain unauthenticated read and write access to the affected vManage system. With this access, the attacker could access information about the affected vManage system, modify the configuration of the system, or make configuration changes to devices that are managed by the system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdw-auth-bypass-65aYqcS2

Credit

by Andrew Kim(Cisco Advanced Security Initiatives Group)

Affected Software

1 affected componentFixes available
cisco SD-WAN vManage Software=20.5, <20.5.1, =20.4, <20.4.1, >=.4, <18, =18.4, =19.2, =19.3, =20.1, <=20.3, <20.3.1
20.5.120.4.120.3.1

Event History

May 5, 2021
Advisory Published
via Cisco·04:00 PM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of cisco-sa-sdw-auth-bypass-65aYqcS2?

The vulnerability cisco-sa-sdw-auth-bypass-65aYqcS2 is considered to be of high severity due to the potential for unauthorized access and configuration modification.

2

How do I fix cisco-sa-sdw-auth-bypass-65aYqcS2?

To remediate the cisco-sa-sdw-auth-bypass-65aYqcS2 vulnerability, you should upgrade to the patched versions of Cisco SD-WAN vManage Software.

3

What are the affected versions of Cisco SD-WAN vManage Software for cisco-sa-sdw-auth-bypass-65aYqcS2?

The affected versions for vulnerability cisco-sa-sdw-auth-bypass-65aYqcS2 include versions below 20.5.1, 20.4.1, and 20.3.1.

4

What type of attack is possible with cisco-sa-sdw-auth-bypass-65aYqcS2?

An attacker can execute adjacent unauthenticated access to bypass authentication and modify configurations with the cisco-sa-sdw-auth-bypass-65aYqcS2 vulnerability.

5

Is authentication required to exploit cisco-sa-sdw-auth-bypass-65aYqcS2?

No, authentication is not required to exploit the cisco-sa-sdw-auth-bypass-65aYqcS2 vulnerability.

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