CVE-2017-11154 : Exploit Details and Defense Strategies

A vulnerability related to the unrestricted uploading of files has been discovered in Synology Photo Station versions older than 6.7.3-3432 and 6.3-2967, allowing remote attackers to generate arbitrary PHP scripts.

Understanding CVE-2017-11154

This CVE involves a security flaw in Synology Photo Station that enables remote attackers to upload malicious PHP scripts.

What is CVE-2017-11154?

The vulnerability in PixlrEditorHandler.php in Synology Photo Station versions before 6.7.3-3432 and 6.3-2967 allows attackers to create arbitrary PHP scripts by manipulating the type parameter.

The Impact of CVE-2017-11154

Remote attackers can exploit this flaw to upload malicious PHP scripts to the affected systems.
This could lead to unauthorized access, data theft, and potential system compromise.

Technical Details of CVE-2017-11154

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability allows remote attackers to upload arbitrary PHP scripts by exploiting the unrestricted file upload capability in PixlrEditorHandler.php.

Affected Systems and Versions

Product: Synology Photo Station
Vendor: Synology
Affected Versions: Before 6.7.3-3432 and 6.3-2967

Exploitation Mechanism

Attackers can manipulate the type parameter to upload malicious PHP scripts.

Mitigation and Prevention

Protecting systems from CVE-2017-11154 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Synology Photo Station to version 6.7.3-3432 or newer to mitigate the vulnerability.
Monitor system logs for any suspicious file uploads.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Regularly educate users on safe file upload practices to prevent similar vulnerabilities.

Patching and Updates

Apply security patches provided by Synology promptly to address known vulnerabilities and enhance system security.