CVE-2017-15715 : What You Need to Know

Apache HTTP Server 2.4.0 to 2.4.29 vulnerability in <FilesMatch> directive matching newline characters.

Understanding CVE-2017-15715

Apache HTTP Server vulnerability allowing malicious filename matching.

What is CVE-2017-15715?

In Apache HTTP Server versions 2.4.0 to 2.4.29, a vulnerability existed in the <FilesMatch> directive, potentially matching newline characters in filenames, leading to security bypass.

The Impact of CVE-2017-15715

This vulnerability could be exploited to bypass security measures in environments where file uploads are restricted externally.

Technical Details of CVE-2017-15715

Apache HTTP Server vulnerability details.

Vulnerability Description

The <FilesMatch> directive could mistakenly match newline characters in filenames, allowing security bypass.

Affected Systems and Versions

Product: Apache HTTP Server
Vendor: Apache Software Foundation
Versions Affected: 2.4.0 to 2.4.29

Exploitation Mechanism

The vulnerability could be exploited in scenarios where file uploads are restricted externally, but the matching process focuses on the latter part of the filename.

Mitigation and Prevention

Steps to mitigate and prevent CVE-2017-15715.

Immediate Steps to Take

Apply patches provided by the vendor promptly.
Monitor vendor advisories for updates and security alerts.
Review and adjust file upload restrictions to enhance security.

Long-Term Security Practices

Regularly update and patch Apache HTTP Server installations.
Implement network security measures to detect and prevent malicious activities.
Conduct regular security audits and penetration testing.

Patching and Updates

Refer to vendor advisories for specific patching instructions and updates.