CVE-2019-15518 : Security Advisory and Response

Swoole before version 4.2.13 has a vulnerability that allows directory traversal in the swPort_http_static_handler function.

Understanding CVE-2019-15518

This CVE involves a security issue in Swoole that can be exploited for directory traversal.

What is CVE-2019-15518?

Swoole before 4.2.13 allows directory traversal in the swPort_http_static_handler function, posing a security risk.

The Impact of CVE-2019-15518

The vulnerability enables attackers to traverse directories, potentially leading to unauthorized access to sensitive files.

Technical Details of CVE-2019-15518

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in Swoole before 4.2.13 allows for directory traversal in the swPort_http_static_handler function.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: All versions before 4.2.13

Exploitation Mechanism

Attackers can exploit this vulnerability to navigate through directories beyond the intended access level, potentially accessing confidential information.

Mitigation and Prevention

Protecting systems from CVE-2019-15518 is crucial to maintaining security.

Immediate Steps to Take

Update Swoole to version 4.2.13 or later to mitigate the vulnerability.
Monitor system logs for any suspicious activities indicating directory traversal attempts.

Long-Term Security Practices

Implement access controls and restrictions to prevent unauthorized directory access.
Regularly audit and review file permissions to limit exposure to directory traversal attacks.

Patching and Updates

Stay informed about security updates and patches released by Swoole to address vulnerabilities like CVE-2019-15518.