CVE-2017-16666 Explained : Impact and Mitigation

Xplico before version 1.2.1 allows remote authenticated users to execute arbitrary commands via shell metacharacters in the name of an uploaded PCAP file. This vulnerability can also be exploited without authentication by leveraging the user registration feature.

Understanding CVE-2017-16666

Xplico is susceptible to remote code execution due to improper input validation.

What is CVE-2017-16666?

The vulnerability in Xplico prior to version 1.2.1 allows authenticated remote users to run arbitrary commands by using shell metacharacters in the name of a PCAP file that is uploaded. It can also be exploited without authentication through the user registration feature.

The Impact of CVE-2017-16666

Authenticated remote users can execute arbitrary commands on the system.
Unauthorized users can also exploit the vulnerability, compromising system security.

Technical Details of CVE-2017-16666

Xplico's vulnerability lies in its handling of file names during the upload process.

Vulnerability Description

The flaw permits authenticated remote users to execute arbitrary commands by manipulating the name of an uploaded PCAP file.

Affected Systems and Versions

Xplico versions prior to 1.2.1 are affected.

Exploitation Mechanism

Authenticated users can exploit the vulnerability by inserting shell metacharacters in the file name.
Unauthenticated users can leverage the user registration feature to execute arbitrary commands.

Mitigation and Prevention

To secure systems from CVE-2017-16666, follow these steps:

Immediate Steps to Take

Update Xplico to version 1.2.1 or later to mitigate the vulnerability.
Restrict access to the application to authorized users only.

Long-Term Security Practices

Regularly monitor and audit user activities within the application.
Implement strong input validation mechanisms to prevent command injection attacks.

Patching and Updates

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