EUVD-2024-2134

Comprehensive Technical Analysis of EUVD-2024-2134

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-2134, also known as CVE-2024-5262, pertains to a critical flaw in the smb server component of ProjectDiscovery Interactsh. This vulnerability allows remote attackers to read and write any files in the directory and subdirectories where the interactsh-server is running, via anonymous login. The severity of this vulnerability is rated with a CVSS base score of 9.3, indicating a critical risk.

CVSS Vector Breakdown:

• AV:N (Network Vector): The vulnerability is exploitable over the network.
• AC:L (Low Complexity): The attack requires low skill or resources.
• AT:N (No Authentication): No authentication is required to exploit the vulnerability.
• PR:N (No Privileges Required): No privileges are required to exploit the vulnerability.
• UI:N (No User Interaction): No user interaction is required to exploit the vulnerability.
• VC:H (High Confidentiality Impact): Complete loss of confidentiality.
• VI:H (High Integrity Impact): Complete loss of integrity.
• VA:H (High Availability Impact): Complete loss of availability.
• SC:N (No Change in Scope): The vulnerability does not change the security scope.
• SI:N (No Change in Scope): The vulnerability does not change the security scope.
• SA:N (No Change in Scope): The vulnerability does not change the security scope.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote File Access: Attackers can remotely access and manipulate files on the server without authentication.
• Data Exfiltration: Sensitive data can be read and exfiltrated by unauthorized parties.
• Malicious File Injection: Attackers can inject malicious files into the server, potentially leading to further compromise.

Exploitation Methods:

• Anonymous Login: Attackers can exploit the vulnerability by connecting to the smb server anonymously and navigating through the directory structure.
• Automated Scripts: Attackers can use automated scripts to scan for vulnerable servers and exploit them en masse.

3. Affected Systems and Software Versions

The vulnerability affects the following versions of ProjectDiscovery Interactsh:

• Versions: v0.0.6 to v1.1.9

Affected Systems:

• Any system running the vulnerable versions of Interactsh, particularly those with the smb server component enabled.

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade Software: Upgrade to the latest version of Interactsh that includes the security patch.
• Disable Anonymous Access: Ensure that anonymous access to the smb server is disabled.
• Network Segmentation: Implement network segmentation to limit the exposure of vulnerable servers.

Long-Term Actions:

• Regular Patching: Implement a regular patching schedule to ensure all software is up to date.
• Access Controls: Enforce strict access controls and authentication mechanisms.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations within the European Union, particularly those relying on ProjectDiscovery Interactsh for security testing and monitoring. The potential for data breaches and unauthorized access can lead to severe financial and reputational damage. Compliance with regulations such as GDPR may also be compromised, leading to legal repercussions.

6. Technical Details for Security Professionals

Vulnerability Details:

• Component: smb server in Interactsh
• Exploit Mechanism: Anonymous login allows unauthorized file access and manipulation.
• Impact: Full read/write access to files and directories.

References:

• NVD Entry: CVE-2024-5262
• GitHub Pull Request: Pull Request #874
• GitHub Commit: Commit 6a0cb98b16636a98712729f3d23e34d8bf7260e7
• Go Vulnerability Database: GO-2024-2907
• ZUSO Advisory: ZA-2024-01

Additional Information:

• Assigner: ZUSO ART
• EPSS Score: 1 (indicating a high likelihood of exploitation)
• ENISA ID Product: Interactsh versions v0.0.6 to v1.1.9
• ENISA ID Vendor: ProjectDiscovery

Conclusion: This vulnerability underscores the importance of timely patching and robust security practices. Organizations should prioritize updating their systems and implementing strong access controls to mitigate the risk associated with EUVD-2024-2134.