CVE-2018-13374 : Exploit Details and Defense Strategies

A vulnerability in Fortinet FortiOS and FortiADC allows attackers to retrieve LDAP server login credentials, posing a security risk.

Understanding CVE-2018-13374

This CVE involves an Improper Access Control issue in Fortinet FortiOS and FortiADC versions, potentially leading to unauthorized access.

What is CVE-2018-13374?

CVE-2018-13374 is a security vulnerability in Fortinet FortiOS 6.0.2, 5.6.7, and earlier, as well as FortiADC 6.1.0, 6.0.0 to 6.0.1, 5.4.0 to 5.4.4. It enables attackers to extract login credentials for the LDAP server configured in FortiGate.

The Impact of CVE-2018-13374

The vulnerability allows attackers to redirect LDAP server connectivity test requests to an unauthorized LDAP server, compromising the security of the system and potentially leading to unauthorized access.

Technical Details of CVE-2018-13374

This section provides detailed technical insights into the CVE-2018-13374 vulnerability.

Vulnerability Description

The Improper Access Control vulnerability in Fortinet FortiOS and FortiADC versions allows attackers to obtain LDAP server login credentials by redirecting connectivity test requests to unauthorized servers.

Affected Systems and Versions

Affected Products: Fortinet FortiOS, FortiADC
Vulnerable Versions: FortiOS 6.0.2, 5.6.7 and earlier, FortiADC 6.1.0, 6.0.0 to 6.0.1, 5.4.0 to 5.4.4

Exploitation Mechanism

Attackers exploit this vulnerability by redirecting LDAP server connectivity test requests to rogue LDAP servers instead of the legitimate configured server.

Mitigation and Prevention

To address CVE-2018-13374, immediate actions and long-term security practices are essential.

Immediate Steps to Take

Apply vendor-provided patches and updates promptly.
Monitor network traffic for any suspicious activity related to LDAP server connections.
Implement strong access controls and authentication mechanisms.

Long-Term Security Practices

Regularly update and patch Fortinet FortiOS and FortiADC systems.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Fortinet has released patches to address the vulnerability. Ensure all affected systems are updated with the latest security fixes.