EUVD-2025-21749

Comprehensive Technical Analysis of EUVD-2025-21749

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-21749 is an unauthenticated arbitrary file upload vulnerability in Idera Up.Time Monitoring Station versions up to and including 7.2. This vulnerability allows attackers to upload crafted PHP files to the webroot, leading to remote code execution (RCE) as the web server user. The severity of this vulnerability is rated with a CVSS Base Score of 9.3, which is considered critical.

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 to exploit.
• 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): Successful exploitation results in high confidentiality impact.
• VI:H (High Integrity Impact): Successful exploitation results in high integrity impact.
• VA:H (High Availability Impact): Successful exploitation results in high availability impact.
• SC:N (No Scope Change): The vulnerability does not change the security scope.
• SI:N (No Scope Change): The vulnerability does not change the security scope.
• SA:N (No Scope Change): The vulnerability does not change the security scope.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: Attackers can exploit this vulnerability without needing any credentials.
• Arbitrary File Upload: The wizards/post2file.php script allows attackers to upload arbitrary files, including malicious PHP scripts.

Exploitation Methods:

• Crafted PHP Files: Attackers can upload PHP files containing malicious code to the webroot.
• Remote Code Execution: Once the malicious PHP file is uploaded, attackers can execute arbitrary code on the server, potentially leading to full system compromise.

3. Affected Systems and Software Versions

Affected Software:

• Idera Up.Time Monitoring Station versions up to and including 7.2.

Affected Systems:

• Any system running the vulnerable versions of Idera Up.Time Monitoring Station.

4. Recommended Mitigation Strategies

Immediate Actions:

• Patching: Upgrade to a patched version of Idera Up.Time Monitoring Station that addresses this vulnerability.
• Access Control: Implement strict access controls to limit exposure to the vulnerable script.
• Monitoring: Increase monitoring of the web server for any suspicious file uploads or unusual activity.

Long-Term Strategies:

• Regular Updates: Ensure that all software is regularly updated and patched.
• Security Audits: Conduct regular security audits and vulnerability assessments.
• Intrusion Detection: Implement intrusion detection systems (IDS) to detect and respond to potential exploitation attempts.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using Idera Up.Time Monitoring Station within the European Union. Given the critical nature of the vulnerability, successful exploitation could lead to data breaches, service disruptions, and potential financial losses. The European cybersecurity landscape must prioritize patching and mitigation strategies to protect against such threats, especially in sectors where monitoring and uptime are critical, such as healthcare, finance, and critical infrastructure.

6. Technical Details for Security Professionals

Vulnerability Details:

• Script: wizards/post2file.php
• Exploit Method: The script accepts arbitrary POST parameters, allowing attackers to upload crafted PHP files.
• Impact: Remote code execution as the web server user.

References:

• Metasploit Module: Metasploit Framework
• Security Assessment Document: Security Assessment Advisory
• Exploit Database: Exploit-DB
• VulnCheck Advisory: VulnCheck

Aliases:

• CVE-2025-34121

Assigner:

• VulnCheck

ENISA IDs:

• Product: [{"id":"980ba4eb-3d2e-3da9-b37d-ca0359252e9b","product":{"name":"Up.Time Monitoring Station"},"product_version":"* ≤7.2"}]
• Vendor: [{"id":"c3b7ef00-c473-3853-8c33-e72ed8f24712","vendor":{"name":"Idera"}}]

By addressing this vulnerability promptly and effectively, organizations can mitigate the risk of exploitation and ensure the security and integrity of their systems.