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

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-03-12 · updated 2026-06-17
Weakness: CWE-522

Description

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 products

Barracuda Load Balancer ADC: through 6.4

References

https://blog.rapid7.com/2020/03/05/r7-2019-39-cve-2019-5648-ldap-credential-exposure-in-barracuda-load-balancer-adc-fixed/
https://blog.rapid7.com/2020/03/05/r7-2019-39-cve-2019-5648-ldap-credential-exposure-in-barracuda-load-balancer-adc-fixed/

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