CVE-2024-35255 is a medium-severity vulnerability affecting Microsoft Azure Identity Libraries and the Microsoft Authentication Library. This vulnerability allows unauthorized users to gain elevated privileges within specific components, posing a significant risk to organizational security. The CVSS score of 5.5 indicates that while the vulnerability is not critical, it still warrants attention and remediation efforts.
Risk to organizations includes potential unauthorized access to sensitive data and systems, which could lead to further exploitation. Microsoft has not yet reported any known exploits associated with this vulnerability; however, the possibility of exploitation remains a concern for users of affected products. Therefore, organizations should prioritize patching immediately.
The vulnerability was published on June 11, 2024, and affects multiple versions of the authentication libraries used in various programming environments, including Java, Node.js, .NET, Go, C++, Python, and JavaScript. Given the widespread use of these libraries, the impact of this vulnerability could be significant.
Organizations should address this vulnerability in their priority patch cycle, ensuring that systems are updated to mitigate any potential risks effectively.
Vulnerability Details
The official description of CVE-2024-35255 states that it is an elevation of privilege vulnerability in the Azure Identity Libraries and Microsoft Authentication Library. The vulnerability was assigned a CVSS score of 5.5, indicating a medium severity level. The affected components include the authentication libraries and the Azure Identity SDK, which are integral to secure authentication in various applications.
The CVSS vector for this vulnerability is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, highlighting a local attack vector, low attack complexity, low privileges required, no user interaction needed, and a high confidentiality impact.
The vulnerability is classified under CWE-362, which relates to improper synchronization in concurrent contexts, leading to potential privilege escalation opportunities.
Technical Analysis
The root cause of CVE-2024-35255 stems from improper handling of concurrent operations within the Azure Identity Libraries and Microsoft Authentication Library. This vulnerability allows attackers with local access to exploit the flawed synchronization mechanisms to gain elevated privileges.
The attack vector is classified as local, meaning that an attacker must have access to the system to exploit this vulnerability. The complexity of the attack is low, requiring minimal technical skill to execute. Privileges required for exploitation are low, allowing users with basic access to potentially escalate their privileges.
No user interaction is needed, making this vulnerability particularly dangerous as it can be exploited without the victim’s knowledge. The confidentiality impact is rated high, as successful exploitation could lead to unauthorized access to sensitive information. However, integrity and availability impacts are rated as none.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2024-35255 is significant due to the widespread use of the vulnerable Azure Identity Libraries and Microsoft Authentication Library across various applications and services. Attackers may leverage this vulnerability to gain unauthorized access to sensitive data and systems, increasing the risk of data breaches and other security incidents.
The blast radius potential is extensive, as the affected libraries are utilized in numerous applications, potentially exposing multiple organizations to risk. Organizations must assess their use of the affected libraries and prioritize remediation based on their specific risk tolerance and security posture.
Given the CVSS score of 5.5 and the absence of known exploits, organizations should address this vulnerability in their patch cycle but may not need to take immediate action unless they have reason to believe they are specifically targeted.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include various releases of the Azure Identity Libraries and Microsoft Authentication Library across multiple platforms. Specifically, versions prior to 1.15.1 for Java, 2.9.2 for Node.js, 4.61.3 for .NET, 1.6.0 for Go, 1.8.0 for C++, 1.11.4 for .NET, 1.12.2 for Java, 1.16.1 for Python, and 4.2.1 for JavaScript are vulnerable. Organizations should ensure they upgrade to the latest patched versions.
Mitigation & Remediation
Organizations should monitor their use of the affected libraries and apply the latest patches to mitigate the risks associated with CVE-2024-35255. If patches are not immediately available, consider implementing workarounds such as restricting user access to vulnerable components and enhancing monitoring for suspicious activity.
For further information on securing your environment, organizations can reference our penetration testing services.
Detection Guidance
To detect potential exploitation of CVE-2024-35255, organizations should implement logging and monitoring strategies focusing on the following indicators: authentication failures, unexpected privilege escalations, and unauthorized access attempts. Regular reviews of logs can help identify behavioral anomalies that could indicate exploitation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2024-35255 highlights the importance of secure coding practices and the need for continuous security assessments. This vulnerability represents a common pattern where improper synchronization can lead to severe security issues if not adequately addressed. Security teams should take this opportunity to reinforce their security posture, ensuring proper testing and validation of libraries in use.
For organizations leveraging cloud services, a comprehensive cloud penetration testing guide can provide essential insights into securing cloud environments against similar vulnerabilities.
Additionally, understanding the implications of vulnerabilities like CVE-2024-35255 can help organizations develop a robust penetration testing methodology that identifies and mitigates risks effectively.
In conclusion, CVE-2024-35255 serves as a reminder for organizations to prioritize security and stay informed about vulnerabilities in their technology stack. Regular updates and proactive security measures are vital to safeguarding sensitive information.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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