CVE-2017-6404 : Exploit Details and Defense Strategies

A vulnerability has been found in Veritas NetBackup versions prior to 7.7 and NetBackup Appliance versions prior to 2.7. This vulnerability allows for unauthorized modification or falsification of log data due to the existence of log files with excessive write permissions.

Understanding CVE-2017-6404

An issue was discovered in Veritas NetBackup Before 7.7 and NetBackup Appliance Before 2.7. There are world-writable log files, allowing destruction or spoofing of log data.

What is CVE-2017-6404?

This CVE identifies a vulnerability in Veritas NetBackup and NetBackup Appliance versions that could lead to unauthorized modification or falsification of log data due to insecure log file permissions.

The Impact of CVE-2017-6404

Unauthorized modification or falsification of log data

Technical Details of CVE-2017-6404

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in Veritas NetBackup versions prior to 7.7 and NetBackup Appliance versions prior to 2.7 allows attackers to manipulate log data due to world-writable log files.

Affected Systems and Versions

Veritas NetBackup versions prior to 7.7
NetBackup Appliance versions prior to 2.7

Exploitation Mechanism

Attackers can exploit this vulnerability by gaining access to the world-writable log files and making unauthorized modifications or falsifications.

Mitigation and Prevention

Protect your systems from CVE-2017-6404 with the following steps:

Immediate Steps to Take

Restrict write permissions on log files
Monitor log file changes for unauthorized modifications

Long-Term Security Practices

Regularly update Veritas NetBackup and NetBackup Appliance to the latest secure versions
Implement access controls to limit unauthorized access to log files

Patching and Updates

Apply patches provided by Veritas to fix the vulnerability and ensure log file security.