CVE-2019-11821 Explained : Impact and Mitigation

Synology Photo Station before 6.8.11-3489 and 6.3-2977 is vulnerable to SQL injection, allowing remote attackers to execute arbitrary SQL commands.

Understanding CVE-2019-11821

This CVE involves a vulnerability in Synology Photo Station that can be exploited by remote attackers.

What is CVE-2019-11821?

The type parameter in synophoto_csPhotoDB.php in Synology Photo Station before versions 6.8.11-3489 and 6.3-2977 is susceptible to a SQL injection attack.

The Impact of CVE-2019-11821

CVSS Base Score: 7.3 (High Severity)
Attack Vector: Network
Attack Complexity: Low
Confidentiality Impact: Low
Integrity Impact: Low
Availability Impact: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged

Technical Details of CVE-2019-11821

Vulnerability Description

The vulnerability allows remote attackers to execute arbitrary SQL commands through the type parameter in synophoto_csPhotoDB.php.

Affected Systems and Versions

Product: Photo Station
Vendor: Synology
Affected Versions:
Photo Station < 6.8.11-3489
Photo Station < 6.3-2977

Exploitation Mechanism

The vulnerability can be exploited remotely by manipulating the type parameter to inject and execute SQL commands.

Mitigation and Prevention

Immediate Steps to Take

Update Photo Station to version 6.8.11-3489 or higher.
Implement network security measures to restrict access.

Long-Term Security Practices

Regularly monitor and audit SQL queries for unusual activities.
Educate users on safe data input practices to prevent SQL injection attacks.

Patching and Updates

Apply patches and updates provided by Synology to fix the SQL injection vulnerability.