EUVD-2024-20843

Comprehensive Technical Analysis of EUVD-2024-20843

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-20843 affects Dataease, an open-source data visualization analysis tool. The issue is a deserialization vulnerability in the DataEase datasource, specifically within the Mysql.java file. This vulnerability allows attackers to execute arbitrary code, bypass the blacklist of MySQL JDBC attacks, and potentially read arbitrary files.

Severity Evaluation:

• Base Score: 9.1 (CVSS 3.1)
• Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

The high base score indicates a critical vulnerability due to the following factors:

• Attack Vector (AV:N): Network-based attack, meaning it can be exploited remotely.
• Attack Complexity (AC:L): Low complexity, making it easier for attackers to exploit.
• Privileges Required (PR:N): No privileges are required to exploit the vulnerability.
• User Interaction (UI:N): No user interaction is required.
• Scope (S:U): Unchanged, meaning the impact is confined to the affected component.
• Confidentiality (C:H): High impact on confidentiality.
• Integrity (I:H): High impact on integrity.
• Availability (A:N): No impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Code Execution (RCE): Attackers can send specially crafted data to the DataEase application, leading to deserialization of untrusted data and execution of arbitrary code.
• Arbitrary File Read: Exploitation can also result in reading arbitrary files on the system, potentially exposing sensitive information.

Exploitation Methods:

• Deserialization Attack: By sending malicious serialized data, attackers can exploit the deserialization process to execute code.
• Bypassing Blacklist: The vulnerability allows attackers to bypass the existing blacklist of MySQL JDBC attacks, making it easier to execute malicious code.

3. Affected Systems and Software Versions

Affected Versions:

• Dataease versions prior to 1.18.15
• Dataease versions 2.0.0 to 2.3.0

Patched Versions:

• Dataease 1.18.15
• Dataease 2.3.0

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Immediately upgrade to the patched versions (1.18.15 or 2.3.0).
• Network Segmentation: Isolate the Dataease application from public networks to limit exposure.
• Input Validation: Implement strict input validation and sanitization to prevent malicious data from being processed.

Long-term Strategies:

• Regular Patching: Establish a regular patching and update schedule for all software components.
• Security Audits: Conduct regular security audits and code reviews to identify and mitigate potential vulnerabilities.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using Dataease, particularly those in the European Union. Given the critical nature of the vulnerability, it could lead to data breaches, unauthorized access, and potential compliance issues with regulations such as GDPR. Organizations must prioritize patching and implementing robust security measures to mitigate risks.

6. Technical Details for Security Professionals

Vulnerability Location:

• The vulnerability is located in the core/core-backend/src/main/java/io/dataease/datasource/type/Mysql.java file.

Exploitation Details:

• The deserialization process in the Mysql.java file does not properly validate or sanitize input data, allowing for the execution of arbitrary code.
• The blacklist for MySQL JDBC attacks can be bypassed, making it easier for attackers to exploit the vulnerability.

References:

• GitHub Security Advisory
• Patch Commit 1
• Patch Commit 2

Aliases:

• CVE-2024-23328
• GSD-2024-23328

Assigner:

• GitHub_M

EPSS Score:

• 2 (Exploit Prediction Scoring System)

ENISA IDs:

• Product:
  • ID: 20e6f1c8-54d1-3f15-8e17-af0511388763, Product: dataease
  • ID: 2baa657f-e228-320a-9f82-930a336f5c7e, Product: dataease, Versions: 2.0.0, < 2.3.0
  • ID: 4c68987c-cf17-338e-ad22-ef03a14c621c, Product: dataease, Versions: < 1.18.15
• Vendor:
  • ID: 20e6f1c8-54d1-3f15-8e17-af0511388763, Vendor: dataease

By addressing this vulnerability promptly and effectively, organizations can significantly reduce the risk of exploitation and ensure the security and integrity of their data visualization processes.