CVE-2024-11234 is a medium-severity vulnerability found in PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, and 8.3.* before 8.3.14. This vulnerability allows improper sanitization of URIs when using streams with a configured proxy and the "request_fulluri" option. As a result, attackers could exploit this weakness to execute HTTP request smuggling attacks, potentially gaining unauthorized access to resources that are otherwise unavailable to external users.
The CVSS score for this vulnerability is 4.8, indicating a medium severity level. The attack vector is classified as 'NETWORK,' and the attack complexity is deemed 'HIGH.' This means that while exploitation may require specific conditions to be met, it is still a significant risk for users of the affected PHP versions.
Organizations utilizing the affected PHP versions should prioritize patching immediately to mitigate the risks associated with this vulnerability. The potential for unauthorized resource access amplifies the urgency for defenders to act promptly.
While there are currently no public exploits or known proofs of concept associated with this vulnerability, the nature of the flaw emphasizes the necessity for organizations to remain vigilant and proactive in their security posture.
Vulnerability Details
In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, and 8.3.* before 8.3.14, when using streams with a configured proxy and the 'request_fulluri' option, the URI is not properly sanitized. This oversight can lead to HTTP request smuggling, allowing attackers to leverage the proxy to perform arbitrary HTTP requests originating from the server, thus potentially gaining access to resources not normally available to the external user.
The CVSS score for this vulnerability is 4.8, indicating a medium severity level. The attack vector is classified as 'NETWORK,' with a high attack complexity. The vulnerability impacts confidentiality and integrity but does not affect availability.
Technical Analysis
The root cause of CVE-2024-11234 lies in the improper sanitization of URIs when streams are configured with a proxy and the 'request_fulluri' option. This flaw allows for the construction of malformed HTTP requests, leading to the potential for HTTP request smuggling. The attack vector requires network access, and the complexity of the attack is categorized as high, implying that specific conditions must be met for exploitation.
Attackers may leverage this vulnerability without any privileges required, and user interaction is not necessary. The impacts on confidentiality and integrity are classified as low, while the availability impact is nonexistent.
Risk & Impact Analysis
The real-world risk associated with CVE-2024-11234 is significant, particularly for organizations that rely on PHP for web applications. The improper handling of URI inputs can lead to unauthorized access and data exfiltration, which may have severe consequences for organizational data security and compliance.
The urgency for organizations to address this vulnerability is underscored by its medium CVSS score. Affected organizations should prioritize remediation during their patch cycles to mitigate this risk effectively.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include PHP 8.1.* before 8.1.31, PHP 8.2.* before 8.2.26, and PHP 8.3.* before 8.3.14. All versions prior to the vendor patch are vulnerable.
Mitigation & Remediation
Organizations should prioritize patching to the latest versions of PHP to remediate this vulnerability. Upgrading to versions 8.1.31, 8.2.26, or 8.3.14 or later is essential to mitigate the risks associated with CVE-2024-11234.
In the absence of a patch, organizations may consider implementing network controls to monitor and restrict the use of configured proxies, thereby reducing exposure to potential exploitation.
For further guidance on security practices, organizations can refer to the resources available for penetration testing to validate their security posture.
Detection Guidance
To detect potential exploitation of this vulnerability, security teams should monitor logs for unusual HTTP request patterns that may indicate request smuggling attempts.
Additionally, monitoring for changes in proxy configurations and unexpected outbound requests can aid in identifying malicious activities.
AppSecure Threat Intelligence Insight
CVE-2024-11234 highlights the importance of proper input validation within web applications. As attackers continuously seek ways to exploit application vulnerabilities, maintaining robust security measures is crucial.
This vulnerability serves as a reminder for organizations to implement rigorous security assessments and penetration testing methodologies to uncover potential weaknesses before they can be exploited.
To strengthen security further, organizations should also consider adopting a vulnerability management program that regularly evaluates and updates security measures.
Ultimately, CVE-2024-11234 underscores the need for continuous vigilance and proactive security practices to protect against evolving threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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