EUVD-2024-0705

Comprehensive Technical Analysis of EUVD-2024-0705

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-0705, also known as CVE-2023-49109, pertains to a Remote Code Execution (RCE) flaw in Apache DolphinScheduler. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a critical severity level. The scoring vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Privileges Required (PR): None (N) - No special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability allows for significant breaches of confidentiality.
• Integrity (I): High (H) - The vulnerability allows for significant breaches of integrity.
• Availability (A): High (H) - The vulnerability allows for significant breaches of availability.

Given these metrics, the vulnerability poses a severe risk to systems running affected versions of Apache DolphinScheduler.

2. Potential Attack Vectors and Exploitation Methods

The RCE vulnerability can be exploited through several potential attack vectors:

• Network-Based Attacks: An attacker can send malicious payloads over the network to the vulnerable DolphinScheduler instance.
• Web Application Exploits: If DolphinScheduler is exposed via a web interface, attackers can exploit the vulnerability through crafted HTTP requests.
• Supply Chain Attacks: Compromised third-party components or dependencies could be used to deliver malicious code to the DolphinScheduler instance.

Exploitation methods may include:

• Injection Attacks: Injecting malicious code into input fields or parameters processed by DolphinScheduler.
• Deserialization Attacks: Exploiting deserialization of untrusted data to execute arbitrary code.
• Command Injection: Executing system commands through vulnerable input handling mechanisms.

3. Affected Systems and Software Versions

The vulnerability affects Apache DolphinScheduler versions prior to 3.2.1. Specifically, versions from 3.0.0 up to but not including 3.2.1 are vulnerable. Organizations using these versions should prioritize updating to the patched version 3.2.1.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Immediate Patching: Upgrade to Apache DolphinScheduler version 3.2.1 or later, which includes the fix for this vulnerability.
• Network Segmentation: Isolate DolphinScheduler instances from public networks and restrict access to trusted internal networks.
• Input Validation: Implement robust input validation and sanitization mechanisms to prevent injection attacks.
• Monitoring and Logging: Enhance monitoring and logging to detect and respond to suspicious activities promptly.
• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security weaknesses.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant threat to the European cybersecurity landscape, particularly for organizations relying on Apache DolphinScheduler for workflow management and scheduling. The high CVSS score indicates that successful exploitation could lead to severe data breaches, unauthorized access, and disruption of services. Given the widespread use of Apache software in various industries, the impact could be far-reaching, affecting critical infrastructure, financial institutions, and government agencies.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Identification: The vulnerability is identified by CVE-2023-49109 and GHSA-qwxx-xww6-8q8m.

• References:

  • NVD Entry
  • GitHub Pull Request
  • Apache DolphinScheduler Repository
  • Apache Mailing List Discussions
  • Openwall Security List

• EPSS Score: The Exploit Prediction Scoring System (EPSS) score of 4 indicates a moderate likelihood of exploitation in the wild.

• ENISA IDs:

  • Product ID: 5301966a-f7c9-3b15-93f8-0694104b4810
  • Vendor ID: 3424722e-cd7e-38e2-bfef-39552d246efe

Security professionals should prioritize patching affected systems and implementing robust security measures to protect against this critical vulnerability. Regular updates and vigilant monitoring are essential to maintain the security posture of organizations using Apache DolphinScheduler.