CVE-2017-1000247 : Vulnerability Insights and Analysis

CodeIgniter 3.1.3, used by the British Columbia Institute of Technology, is vulnerable to an HTTP Header Injection flaw in the set_status_header() function under Apache.

Understanding CVE-2017-1000247

This CVE identifies a vulnerability in CodeIgniter 3.1.3 that can lead to HTTP Header Injection flaws.

What is CVE-2017-1000247?

The HTTP Header Injection vulnerability in the set_status_header() common function of CodeIgniter 3.1.3, used by the British Columbia Institute of Technology, can result in the presence of flaws in HTTP Headers. This vulnerability occurs specifically under Apache.

The Impact of CVE-2017-1000247

Allows attackers to manipulate HTTP headers, leading to various attacks like response splitting and cross-site scripting (XSS).
Potential unauthorized access to sensitive information or user sessions.

Technical Details of CVE-2017-1000247

CodeIgniter 3.1.3 vulnerability details.

Vulnerability Description

The vulnerability in set_status_header() function allows malicious actors to inject arbitrary HTTP headers.

Affected Systems and Versions

Product: CodeIgniter 3.1.3
Vendor: British Columbia Institute of Technology
Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting crafted HTTP headers to manipulate server responses.

Mitigation and Prevention

Protect systems from CVE-2017-1000247.

Immediate Steps to Take

Update CodeIgniter to a patched version that addresses the HTTP Header Injection vulnerability.
Implement strict input validation to prevent malicious header injections.

Long-Term Security Practices

Regularly monitor and audit HTTP headers for anomalies.
Educate developers on secure coding practices to prevent injection vulnerabilities.

Patching and Updates

Apply security patches provided by CodeIgniter to fix the HTTP Header Injection vulnerability.