CVE-2019-5648 : Security Advisory and Response
Learn about CVE-2019-5648 affecting Barracuda Load Balancer ADC. Discover the impact, affected versions, and mitigation steps to secure your systems from LDAP credential exposure.
A vulnerability in Barracuda Load Balancer ADC allows authenticated administrative users to expose LDAP credentials over the network.
Understanding CVE-2019-5648
This CVE involves the exposure of LDAP credentials in Barracuda Load Balancer ADC, impacting versions below 6.5.
What is CVE-2019-5648?
If an authenticated administrative user with access to an unpatched Barracuda Load Balancer ADC version 6.4 or below modifies the LDAP service configuration, they can select an attacker-controlled LDAP server without re-entering credentials, potentially exposing LDAP credentials over the network.
The Impact of CVE-2019-5648
- CVSS Base Score: 8.7 (High)
- Attack Vector: Network
- Confidentiality Impact: High
- Integrity Impact: High
- Privileges Required: High
- Scope: Changed
- Attack Complexity: Low
- User Interaction: None
- Availability Impact: None
- This vulnerability poses a significant risk to the confidentiality and integrity of LDAP credentials.
Technical Details of CVE-2019-5648
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows authenticated administrative users to manipulate the LDAP service configuration in Barracuda Load Balancer ADC, potentially exposing LDAP credentials to unauthorized parties.
Affected Systems and Versions
- Affected Product: Load Balancer ADC
- Vendor: Barracuda
- Affected Versions: Below 6.5
Exploitation Mechanism
An authenticated administrative user can exploit this vulnerability by changing the LDAP server configuration without the need to re-enter LDAP credentials, thereby exposing sensitive information.
Mitigation and Prevention
Protect your systems from CVE-2019-5648 with the following measures:
Immediate Steps to Take
- Ensure Barracuda Load Balancer ADC is on version 6.3.x or 6.4.x
- Apply patches through Barracuda's automated security patching system
- Do not disable the security update system
Long-Term Security Practices
- Regularly update Barracuda Load Balancer ADC firmware
- Implement strong access controls and authentication mechanisms
Patching and Updates
- Update Barracuda Load Balancer ADC devices to the latest firmware versions
- Version 6.5 includes the patch for CVE-2019-5648