CVE-2019-9195 : What You Need to Know

Grin prior to version 1.0.2 is vulnerable to a directory traversal issue in the util/src/zip.rs module, allowing attackers to execute unauthorized code.

Understanding CVE-2019-9195

The vulnerability was made public on February 26, 2019.

What is CVE-2019-9195?

The flaw in Grin's handling of files in the zip.rs module allows malicious actors to exploit a directory traversal vulnerability in a ZIP archive, leading to the execution of unauthorized code.

The Impact of CVE-2019-9195

This vulnerability can be exploited by attackers to execute arbitrary code on affected systems, potentially leading to unauthorized access and control.

Technical Details of CVE-2019-9195

Grin's vulnerability can be further understood through the following technical details:

Vulnerability Description

The mishandling of suspicious files in util/src/zip.rs in Grin before version 1.0.2 allows attackers to execute arbitrary code through directory traversal in a ZIP archive.

Affected Systems and Versions

Product: Grin
Vendor: N/A
Versions affected: All versions before 1.0.2

Exploitation Mechanism

Attackers can exploit a directory traversal vulnerability in a ZIP archive to execute unauthorized code on systems running vulnerable versions of Grin.

Mitigation and Prevention

To address CVE-2019-9195, consider the following mitigation strategies:

Immediate Steps to Take

Update Grin to version 1.0.2 or later to mitigate the vulnerability.
Avoid opening ZIP archives from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement file upload restrictions and proper input validation to prevent directory traversal attacks.

Patching and Updates

Ensure that all systems running Grin are updated to version 1.0.2 or above to patch the vulnerability and enhance system security.