CVE-2017-6971 Explained : Impact and Mitigation

AlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 allow remote authenticated users to execute arbitrary commands in a privileged context or launch a reverse shell. Learn more about this CVE.

Understanding CVE-2017-6971

This CVE involves a vulnerability in AlienVault USM, OSSIM, and NfSen versions prior to specific releases, enabling remote authenticated users to execute unauthorized commands.

What is CVE-2017-6971?

Remote authenticated users can exploit a vulnerability in AlienVault USM, OSSIM, and NfSen versions prior to 5.3.7 and 1.3.8, respectively. By manipulating PHP session IDs and NfSen PHP code, attackers can execute arbitrary commands with elevated privileges or initiate a reverse shell.

The Impact of CVE-2017-6971

This vulnerability allows attackers to gain unauthorized access and execute malicious commands with elevated privileges, posing a significant security risk to affected systems.

Technical Details of CVE-2017-6971

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The vulnerability in AlienVault USM, OSSIM, and NfSen versions prior to 5.3.7 and 1.3.8 allows remote authenticated users to execute arbitrary commands or launch a reverse shell by manipulating PHP session IDs and NfSen PHP code.

Affected Systems and Versions

AlienVault USM versions before 5.3.7
AlienVault OSSIM versions before 5.3.7
NfSen versions before 1.3.8

Exploitation Mechanism

Attackers exploit this vulnerability by manipulating PHP session IDs and NfSen PHP code to execute unauthorized commands with elevated privileges or initiate a reverse shell.

Mitigation and Prevention

Protect your systems from CVE-2017-6971 with these mitigation strategies.

Immediate Steps to Take

Update AlienVault USM, OSSIM, and NfSen to versions 5.3.7 and 1.3.8, respectively.
Monitor system logs for any suspicious activities.
Implement strong authentication mechanisms to prevent unauthorized access.

Long-Term Security Practices

Regularly update and patch all software and applications.
Conduct security audits and penetration testing to identify vulnerabilities.
Educate users on safe computing practices to prevent social engineering attacks.

Patching and Updates

Apply security patches provided by AlienVault and NfSen promptly.
Stay informed about security advisories and updates from the vendors to protect your systems effectively.