CVE-2025-56157

Comprehensive Technical Analysis of CVE-2025-56157

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2025-56157 Description: The vulnerability involves the use of default credentials for the PostgreSQL database in the Dify application up to version 1.5.1. These credentials are specified in the docker-compose.yaml file included in the source code. CVSS Score: 9.8

Severity Evaluation:

• Critical: A CVSS score of 9.8 indicates a critical vulnerability. The use of default credentials can lead to unauthorized access to the PostgreSQL database, potentially exposing sensitive data and allowing attackers to manipulate the database.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Unauthorized Access: Attackers can gain access to the PostgreSQL database using the default credentials.
2. Data Exfiltration: Once access is gained, attackers can exfiltrate sensitive data stored in the database.
3. Data Manipulation: Attackers can alter, delete, or insert malicious data into the database.
4. Privilege Escalation: If the database has elevated privileges, attackers can use it as a pivot point to gain further access to other systems within the network.

Exploitation Methods:

1. Credential Scanning: Attackers can scan for default credentials using automated tools.
2. Manual Exploitation: Manually connecting to the PostgreSQL database using the default credentials.
3. Scripted Attacks: Using scripts to automate the process of connecting to the database and performing malicious actions.

3. Affected Systems and Software Versions

Affected Systems:

• All systems running Dify versions up to and including 1.5.1.

Software Versions:

• Dify versions 1.0.0 to 1.5.1.

4. Recommended Mitigation Strategies

1. Immediate Action:

   • Change the default PostgreSQL credentials to strong, unique passwords.
   • Ensure that the docker-compose.yaml file does not contain hardcoded credentials.

2. Long-Term Mitigation:

   • Implement a secure credential management system.
   • Regularly update and patch the Dify application to the latest version.
   • Conduct regular security audits and vulnerability assessments.
   • Use network segmentation to limit access to the database.
   • Implement monitoring and alerting for unusual database activities.

5. Impact on Cybersecurity Landscape

Immediate Impact:

• Organizations using Dify are at high risk of data breaches and unauthorized access.
• Potential for widespread exploitation if the vulnerability is not addressed promptly.

Long-Term Impact:

• Increased awareness of the risks associated with default credentials.
• Emphasis on the importance of secure coding practices and credential management.
• Potential regulatory and compliance implications for organizations that fail to address the vulnerability.

6. Technical Details for Security Professionals

Vulnerability Details:

• The docker-compose.yaml file in Dify versions up to 1.5.1 contains hardcoded PostgreSQL credentials.
• Example of vulnerable configuration:

  version: '3.1'
  services:
    db:
      image: postgres
      environment:
        POSTGRES_USER: admin
        POSTGRES_PASSWORD: admin
  

Detection Methods:

• Review the docker-compose.yaml file for hardcoded credentials.
• Use vulnerability scanning tools to detect default credentials.
• Monitor database logs for unauthorized access attempts.

Remediation Steps:

1. Change Default Credentials:

   • Update the docker-compose.yaml file to use environment variables or a secure vault for storing credentials.
   • Example of a secure configuration:

     version: '3.1'
     services:
       db:
         image: postgres
         environment:
           POSTGRES_USER: ${POSTGRES_USER}
           POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
     

2. Implement Secure Credential Management:

   • Use tools like HashiCorp Vault or AWS Secrets Manager to manage and rotate credentials securely.

3. Regular Audits:

   • Conduct regular security audits to ensure that default credentials are not used in any part of the application.

Conclusion: CVE-2025-56157 highlights the critical importance of secure credential management and the risks associated with default credentials. Organizations must take immediate action to mitigate this vulnerability and implement robust security practices to prevent future incidents.

This analysis provides a comprehensive overview of the vulnerability, its potential impact, and recommended mitigation strategies for cybersecurity professionals.