CVE-2017-5247 : Vulnerability Insights and Analysis

Biscom Secure File Transfer is vulnerable to a cross-site scripting (XSS) issue in the File Name field, allowing authenticated users to execute malicious scripts. This CVE affects versions prior to 5.1.1028.

Understanding CVE-2017-5247

This CVE involves a security vulnerability in Biscom Secure File Transfer that enables XSS attacks through manipulated file names.

What is CVE-2017-5247?

The File Name field in Biscom Secure File Transfer is susceptible to a cross-site scripting vulnerability. Attackers can insert HTML scripting tags in file names, leading to script execution when viewed by other authenticated users.

The Impact of CVE-2017-5247

This security flaw affects all versions of Secure File Transfer before 5.1.1028. It allows malicious users to execute scripts within the application, potentially compromising data and user security.

Technical Details of CVE-2017-5247

Biscom Secure File Transfer's vulnerability to cross-site scripting is detailed below:

Vulnerability Description

An authenticated user with file upload permissions can input a file name containing HTML scripting tags. When another authenticated user accesses the file, the embedded script is executed.

Affected Systems and Versions

Product: Secure File Transfer
Vendor: Biscom
Vulnerable Versions: Prior to 5.1.1028

Exploitation Mechanism

The vulnerability arises from the ability of authorized users to upload files with malicious filenames containing HTML scripts.

Mitigation and Prevention

To address CVE-2017-5247, consider the following steps:

Immediate Steps to Take

Update Biscom Secure File Transfer to version 5.1.1028 or later.
Educate users on safe file naming practices to prevent XSS attacks.

Long-Term Security Practices

Regularly monitor and audit file uploads and downloads for suspicious activity.
Implement content security policies to mitigate XSS risks.

Patching and Updates

Apply patches and updates provided by Biscom promptly to address security vulnerabilities.