CVE-2021-42913 : Security Advisory and Response

The SyncThru Web Service on Samsung SCX-6x55X printers has a vulnerability that allows unauthorized access to sensitive information.

Understanding CVE-2021-42913

What is CVE-2021-42913?

The vulnerability in SyncThru Web Service enables an attacker to retrieve SMB users and passwords in plaintext without requiring authentication.

The Impact of CVE-2021-42913

This vulnerability could lead to unauthorized access to sensitive information stored on the affected printers, compromising the data security of organizations.

Technical Details of CVE-2021-42913

Vulnerability Description

The vulnerability in the SyncThru Web Service on Samsung SCX-6x55X printers allows attackers to extract a list of SMB users and their cleartext passwords by inspecting the HTML source code.

Affected Systems and Versions

Product: Samsung SCX-6x55X printers
Vendor: Samsung
Version: All versions are affected

Exploitation Mechanism

Attackers can exploit this vulnerability by simply reading the HTML source code without the need for authentication, potentially leading to unauthorized access to sensitive data.

Mitigation and Prevention

Immediate Steps to Take

Disable the SyncThru Web Service on affected Samsung SCX-6x55X printers if it is not necessary for regular operations.
Regularly monitor network traffic for any suspicious activities or unauthorized access attempts.

Long-Term Security Practices

Implement network segmentation to isolate printers from critical systems and data.
Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Apply security patches and updates provided by Samsung to address this vulnerability and enhance the security of the affected printers.