CVE-2019-5648: LDAP Credential Exposure in Barracuda Load Balancer ADC

Q: What is CVE-2019-5648?

CVE-2019-5648 is a vulnerability that allows authenticated administrative access to a Barracuda Load Balancer ADC running unpatched firmware <= v6.4 to edit the LDAP service configuration and change the LDAP server to an attacker-controlled system without re-entering LDAP credentials.

Q: How severe is the vulnerability CVE-2019-5648?

The severity of CVE-2019-5648 is high, with a severity value of 6.5.

Q: What software is affected by CVE-2019-5648?

The Barracuda Load Balancer ADC running unpatched firmware <= v6.4 is affected by CVE-2019-5648.

Q: How can I fix CVE-2019-5648?

To fix CVE-2019-5648, it is recommended to update the firmware of the Barracuda Load Balancer ADC to a version higher than 6.4.

Q: Where can I find more information about CVE-2019-5648?

You can find more information about CVE-2019-5648 at the following link: https://blog.rapid7.com/2020/03/05/r7-2019-39-cve-2019-5648-ldap-credential-exposure-in-barracuda-load-balancer-adc-fixed/

Published Mar 12, 2020

Updated

Authenticated, administrative access to a Barracuda Load Balancer ADC running unpatched firmware <= v6.4 allows one to edit the LDAP service configuration of the balancer and change the LDAP server to an attacker-controlled system, without having to re-enter LDAP credentials. These steps can be used by any authenticated administrative user to expose the LDAP credentials configured in the LDAP connector over the network.

Affected Software

2 affected components

Barracuda Load Balancer Adc Firmware<=6.4

Barracuda Load Balancer ADC

Remediation

Information

Administrators should ensure that their Barracuda Load Balancer ADC is on either a 6.3.x or 6.4.x version so that the patch can be applied through Barracuda's automated security patching system. Ensure that you have not intentionally disabled the security update system. Administrators should update their Barracuda Load Balancer ADC devices to the latest firmware versions as they become available. Version 6.5 will ship with the patch for CVE-2019-5648.

Event History

Mar 12, 2020

CVE Published

via MITRE·01:00 PM

Data Sourced

via MITRE·01:00 PM

RemedyDescriptionSeverityWeakness

Frequently Asked Questions

What is CVE-2019-5648?

CVE-2019-5648 is a vulnerability that allows authenticated administrative access to a Barracuda Load Balancer ADC running unpatched firmware <= v6.4 to edit the LDAP service configuration and change the LDAP server to an attacker-controlled system without re-entering LDAP credentials.

How severe is the vulnerability CVE-2019-5648?