CVE-2019-17320 : What You Need to Know

NetSarang XFTP Client version 6.0149 and earlier is vulnerable to a buffer overflow issue due to inadequate boundary checks when copying a file name from an attacker-controlled FTP server. This allows attackers to execute arbitrary code by sending a specially crafted filename.

Understanding CVE-2019-17320

This CVE entry describes a critical vulnerability in NetSarang XFTP Client that can be exploited by attackers to run malicious code on the affected system.

What is CVE-2019-17320?

The vulnerability in NetSarang XFTP Client version 6.0149 and earlier allows attackers to trigger a buffer overflow by manipulating file names from an FTP server they control. This can lead to the execution of arbitrary code on the target system.

The Impact of CVE-2019-17320

Exploiting this vulnerability can result in attackers executing arbitrary code on the affected system, potentially leading to further compromise, data theft, or system manipulation.

Technical Details of CVE-2019-17320

NetSarang XFTP Client version 6.0149 and earlier is susceptible to a buffer overflow vulnerability due to improper boundary checks during file name copying.

Vulnerability Description

The vulnerability arises from inadequate boundary checks when copying file names from an attacker-controlled FTP server, allowing the execution of arbitrary code.

Affected Systems and Versions

Product: XFTP
Vendor: NetSarang
Versions Affected: 6.0149 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specifically crafted filename from an FTP server they control, triggering a buffer overflow and enabling the execution of malicious code.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2019-17320.

Immediate Steps to Take

Update NetSarang XFTP Client to the latest version to mitigate the vulnerability.
Monitor network traffic for any suspicious activities related to FTP file transfers.

Long-Term Security Practices

Implement strong network segmentation to limit the impact of potential attacks.
Regularly educate users on safe FTP practices and the importance of software updates.

Patching and Updates

Apply security patches provided by NetSarang promptly to address the buffer overflow vulnerability in XFTP Client.