CVE-2017-6200 : What You Need to Know

In the previous version 0.203, an issue existed in Sandstorm that enabled attackers to access any designated file within the /etc or /run directory by exploiting the sandbox backup feature. This vulnerability was caused by the findFilesToZip function failing to properly filter Line Feed (\n) characters present in directory names.

Understanding CVE-2017-6200

What is CVE-2017-6200?

CVE-2017-6200 is a vulnerability in Sandstorm before build 0.203 that allows remote attackers to read any specified file under /etc or /run via the sandbox backup function.

The Impact of CVE-2017-6200

This vulnerability could potentially lead to unauthorized access to sensitive files on the system, compromising data confidentiality and integrity.

Technical Details of CVE-2017-6200

Vulnerability Description

The findFilesToZip function in Sandstorm fails to filter Line Feed (\n) characters in directory names, allowing attackers to read any specified file under /etc or /run.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: All versions before build 0.203

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating Line Feed (\n) characters in directory names to access sensitive files within the /etc or /run directory.

Mitigation and Prevention

Immediate Steps to Take

Update Sandstorm to version 0.203 or later to mitigate this vulnerability.
Regularly monitor and review access logs for any unauthorized file access attempts.

Long-Term Security Practices

Implement proper input validation and sanitization to prevent directory traversal attacks.
Conduct regular security audits and code reviews to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by Sandstorm.