CVE-2024-43800 is a medium-severity vulnerability in the openjsf serve-static component, which serves static files. This vulnerability allows the component to pass untrusted user input to the redirect() function, potentially executing untrusted code. Attackers may leverage this flaw to manipulate application behavior, posing a risk to security.
The CVSS score for this vulnerability is 5.0, indicating a medium severity level. The attack vector is network-based, and the attack complexity is high, requiring user interaction. Although it has a low impact on confidentiality, integrity, and availability, the implications of executing untrusted code can lead to significant security breaches.
Organizations using affected versions of serve-static are urged to address this vulnerability promptly. The vulnerability was published on September 10, 2024, and a patch has been made available in serve-static version 1.16.0. Given the nature of this vulnerability, organizations should prioritize patching immediately.
It is essential for security teams to assess their applications for this vulnerability, especially if they are using versions of serve-static prior to 1.16.0. Proactive measures should be taken to mitigate potential risks associated with this vulnerability.
Vulnerability Details
The official description of CVE-2024-43800 states: 'serve-static serves static files. serve-static passes untrusted user input - even after sanitizing it - to redirect() may execute untrusted code.' This vulnerability is classified as CWE-79, which relates to improper neutralization of input during web page generation ('cross-site scripting').
The vulnerability has a CVSS score of 5.0, indicating a medium severity. Organizations should consider this severity level in their vulnerability management processes, as it reflects the potential impact on their systems and applications.
The affected product, openjsf serve-static, has been a widely used component in Node.js applications. It is crucial for organizations to stay updated with the latest patches to maintain the integrity and security of their applications.
Technical Analysis
The root cause of CVE-2024-43800 lies in how the serve-static component handles untrusted user input. Despite attempts to sanitize input, it still allows malicious users to exploit the redirect() function. This is indicative of insufficient validation and sanitization measures, which can lead to code execution vulnerabilities.
The attack vector is network-based, requiring high complexity due to the necessity for user interaction. Attackers need to manipulate user input in a way that the application accepts it without adequate validation, making it a targeted form of attack.
No privileges are required to exploit this vulnerability, which increases its risk potential. User interaction is mandatory, meaning a user must be persuaded to interact with the manipulated input in a specific way. The impacts on confidentiality, integrity, and availability are classified as low, but that does not diminish the overall risk to the application.
Risk & Impact Analysis
Risk to organizations includes the potential for executing untrusted code, leading to unauthorized actions within the application. Given that this component serves static files, the implications could affect not only the application itself but also the integrity of user data.
Organizations must consider the blast radius of this vulnerability, especially if they have multiple applications relying on the affected component. The urgency for remediation is high, as attackers may seek to exploit this weakness before organizations can implement the patch.
Given the CVSS score of 5.0 and the absence of known exploits, organizations should still prioritize this vulnerability within their patch management processes. The combination of a network attack vector and the high complexity of exploitation indicates a potential for targeted attacks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of serve-static include all versions prior to 1.16.0 and those from 2.0.0 to 2.1.0. Organizations must ensure they upgrade to the latest version to mitigate this vulnerability.
Mitigation & Remediation
To mitigate the risk associated with CVE-2024-43800, organizations should apply the patch provided in serve-static version 1.16.0. Regularly updating dependencies is a crucial practice to maintain application security.
In instances where immediate patching is not feasible, organizations can implement workarounds such as input validation and sanitization practices to reduce the risk of untrusted input being processed.
For ongoing security, organizations may consider engaging in penetration testing to evaluate the security posture of their applications.
Detection Guidance
Organizations should monitor logs for any indicators of exploitation attempts, such as unusual redirects or unexpected user input patterns. Behavioral anomalies can signal attempts to exploit this vulnerability.
Network signatures may also be useful in identifying potential exploitation, particularly if malicious inputs are detected in requests. Keeping an eye on system changes can help in detecting unauthorized access or manipulation.
AppSecure Threat Intelligence Insight
CVE-2024-43800 highlights a critical aspect of software development: the need for robust input validation. This vulnerability serves as a reminder of the importance of secure coding practices and the potential risks associated with user input.
The low EPSS score indicates a low probability of exploitation in the wild; however, organizations should remain vigilant. Trends in exploit development may evolve, and lessons learned from this vulnerability can inform future coding practices.
Security teams should consider the implications of similar vulnerabilities in their applications and prioritize ongoing security assessments. Engaging in penetration testing methodology can help identify weaknesses before they are exploited.
As organizations adapt to evolving threats, the insights gained from vulnerabilities like CVE-2024-43800 should guide security strategies and enhance overall resilience.
For more comprehensive security assessments, organizations may refer to our application security assessment services.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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