CVE-2019-12311 Explained : Impact and Mitigation

Sandline Centraleyezer (On Premises) has a vulnerability that allows for Unrestricted File Upload, leading to Stored XSS.

Understanding CVE-2019-12311

Sandline Centraleyezer (On Premises) is susceptible to Unrestricted File Upload, enabling Stored XSS when executing a malicious script.

What is CVE-2019-12311?

The vulnerability in Sandline Centraleyezer (On Premises) permits Unrestricted File Upload, allowing an attacker to upload an HTML page containing a script to the server. When a user downloads a CISO Report template, the script executes, potentially leading to Stored XSS.

The Impact of CVE-2019-12311

Attackers can upload malicious scripts to the server, compromising the integrity of the system.
Stored XSS can lead to unauthorized access, data theft, and further exploitation of the affected system.

Technical Details of CVE-2019-12311

Sandline Centraleyezer (On Premises) vulnerability details.

Vulnerability Description

The flaw enables Unrestricted File Upload, facilitating the execution of malicious scripts on the server.

Affected Systems and Versions

Product: Sandline Centraleyezer (On Premises)
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers upload an HTML page with a script to the server.
When a user downloads a CISO Report template, the script is executed, leading to Stored XSS.

Mitigation and Prevention

Protecting systems from CVE-2019-12311.

Immediate Steps to Take

Disable file upload functionality if not essential.
Implement input validation to restrict file types and sizes.
Regularly monitor and audit file uploads for suspicious activities.

Long-Term Security Practices

Conduct security training to educate users on safe file handling practices.
Keep software and systems updated to patch known vulnerabilities.

Patching and Updates

Apply security patches provided by Sandline for Centraleyezer to address the Unrestricted File Upload vulnerability.