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CVE-2024-53677: Critical Vulnerability in Apache Struts

A critical vulnerability in Apache Struts allows attackers to exploit flawed file upload logic, potentially leading to Remote Code Execution. Organizations must upgrade to version 6.4.0 immediately to mitigate risks.

CRITICALPublic ExploitCVSS 9.5 · Published December 11, 2024

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CVE-2024-53677 is a critical vulnerability affecting Apache Struts, specifically related to its file upload functionality. This vulnerability allows attackers to manipulate file upload parameters, enabling path traversal and the potential for uploading malicious files. If exploited, this can lead to Remote Code Execution, posing significant risks to affected systems. With a CVSS score of 9.5, the severity of this vulnerability necessitates immediate attention from organizations utilizing this technology.

The vulnerability affects Apache Struts versions from 2.0.0 to prior to 6.4.0. Users are strongly advised to upgrade to version 6.4.0 or later and transition to the updated file upload mechanism to ensure their applications remain secure. If your application does not rely on the outdated file upload logic utilizing FileuploadInterceptor, it is considered safe.

Given the potential for exploitation, organizations should prioritize patching immediately. Failure to address this vulnerability could result in unauthorized access and significant data breaches.

The vulnerability has been found to have public proof of concept (PoC) available on GitHub, indicating that attackers may already be developing or deploying exploits. This active exploitability further emphasizes the urgency for organizations to act promptly.

In summary, CVE-2024-53677 represents a serious risk to organizations using Apache Struts. Timely remediation, through updating to the latest version, is critical to preventing potential exploitation and ensuring the integrity of systems.

For further information, refer to the details provided on the official Apache Struts Wiki.

Vulnerability Details

The vulnerability in question stems from a flaw in the file upload logic of Apache Struts, which allows an attacker to leverage manipulated file upload parameters. This flaw can enable path traversal, potentially allowing malicious files to be uploaded and executed remotely. The official CVSS score for this vulnerability is 9.5, categorizing it as critical due to its potential impacts on confidentiality, integrity, and availability.

The affected product is Apache Struts, with versions from 2.0.0 up to (but not including) 6.4.0 being vulnerable. Users are recommended to upgrade to version 6.4.0 or later to mitigate this vulnerability. The CWE classification for this vulnerability is CWE-434, indicating a flaw related to unrestricted file upload.

Technical Analysis

The root cause of CVE-2024-53677 lies in the flawed logic associated with file uploads in Apache Struts. The attack vector is network-based, and the attack complexity is classified as high, requiring specific conditions to be met for successful exploitation. Importantly, no privileges are required for an attacker to exploit this vulnerability, and user interaction is not necessary.

The potential impacts of exploitation are severe, with high impacts on confidentiality, integrity, and availability. The vulnerability allows attackers to upload arbitrary files, which can be executed with the same privileges as the application, leading to significant security breaches.

Risk & Impact Analysis

Organizations utilizing Apache Struts must evaluate the deployment risk associated with CVE-2024-53677. Given its critical nature, the risk to organizations includes the potential for unauthorized access and remote code execution, resulting in data breaches and system compromise. The blast radius for this vulnerability could extend to all systems running the affected versions of Apache Struts, thus magnifying the urgency for updates.

Based on the CVSS score, the vulnerability is categorized as critical, underscoring the necessity for organizations to prioritize remediation efforts. With public proof of concept exploits identified, the window for potential exploitation is increasing, making rapid response essential.

Signal

Status

Known Exploit

Yes

Public PoC

Yes

Actively Exploited

No

Ransomware Use

No

Affected Versions

All versions of Apache Struts from 2.0.0 prior to 6.4.0 are affected by this vulnerability. Organizations should ensure they upgrade to version 6.4.0 or later to mitigate the risks associated with this vulnerability.

Mitigation & Remediation

Organizations should prioritize upgrading to Apache Struts version 6.4.0 or later. It is critical to migrate to the new file upload mechanism provided by Apache to prevent exploitation of this vulnerability. If upgrading is not immediately feasible, organizations should review their implementations to ensure they are not using the outdated logic based on FileuploadInterceptor.

In addition, implementing network controls to monitor file uploads and employing security testing measures can help detect and prevent potential exploitation. For organizations seeking to enhance their security posture, services such as penetration testing can be beneficial in identifying vulnerabilities before they are exploited.

Detection Guidance

To detect potential exploitation attempts, organizations should monitor log files for unusual file upload activities, particularly those that deviate from normal patterns. Behavioral anomalies, such as unexpected file types or sizes, should be logged and investigated. Additionally, network signatures that indicate file upload attempts should be analyzed to identify potential threats.

AppSecure Threat Intelligence Insight

CVE-2024-53677 highlights the critical need for organizations to continuously monitor and secure their applications against vulnerabilities that can lead to severe impacts. The trend of exploiting file upload vulnerabilities demonstrates the necessity of robust application security practices. Security teams must implement comprehensive security assessments and maintain up-to-date security protocols to defend against such threats.

For organizations looking to improve their security posture, resources such as the penetration testing methodology can offer valuable insights into effective testing strategies.

Additionally, organizations should review their security policies and consider adopting a proactive approach to security, including regular assessments and updates to their application security measures. For more information on how to maintain a solid security foundation, refer to the vulnerability management program designed to help organizations mitigate risks effectively.

Lastly, leveraging advanced security frameworks can enhance the overall security posture, as discussed in the prevention strategies for file upload vulnerabilities to further protect against threats like CVE-2024-53677.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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