Description
Apache Druid’s Kerberos authenticator uses a weak fallback secret
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-199714
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in EUVD-2025-199714 pertains to Apache Druid’s Kerberos authenticator, which employs a weak fallback secret. This vulnerability is assigned a CVSS Base Score of 9.8, indicating a critical severity level. The CVSS 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 can be exploited remotely over the network.
- Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources to exploit.
- 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 factors, the vulnerability poses a severe risk to systems using Apache Druid with the affected Kerberos authenticator.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves exploiting the weak fallback secret in the Kerberos authenticator. Potential exploitation methods include:
- Network-Based Attacks: An attacker could exploit the vulnerability over the network, potentially gaining unauthorized access to the system.
- Credential Harvesting: The weak fallback secret could be leveraged to harvest credentials, allowing attackers to escalate privileges or gain access to other systems.
- Man-in-the-Middle (MitM) Attacks: An attacker could intercept and manipulate Kerberos authentication traffic, potentially leading to unauthorized access or data manipulation.
3. Affected Systems and Software Versions
The vulnerability affects Apache Druid versions prior to 34.0.0. Organizations using these versions are at risk and should prioritize updating to a patched version.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Update to the Latest Version: Upgrade Apache Druid to version 34.0.0 or later, which includes the necessary patches to address the vulnerability.
- Implement Strong Authentication Mechanisms: Ensure that strong, non-default secrets are used for all authentication mechanisms.
- Network Segmentation: Implement network segmentation to limit the exposure of vulnerable systems to potential attackers.
- Monitoring and Logging: Enhance monitoring and logging to detect any unusual activity that may indicate an attempted exploitation of the vulnerability.
- Regular Security Audits: Conduct regular security audits to identify and address any potential vulnerabilities in the system.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations within the European Union that rely on Apache Druid for data analytics. Given the critical nature of the vulnerability, it could lead to data breaches, unauthorized access, and potential disruptions in service. This underscores the importance of timely patching and adherence to best security practices to protect sensitive data and maintain operational integrity.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Vulnerability Identification: The vulnerability is identified as CVE-2025-59390 and is documented in the EUVD as EUVD-2025-199714.
- References:
- Patch Information: The vulnerability is addressed in Apache Druid version 34.0.0. Organizations should review the patch notes and apply the update as soon as possible.
- Detection and Response: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and respond to any attempts to exploit this vulnerability. Regularly review logs for any suspicious activity related to Kerberos authentication.
By following these recommendations and staying vigilant, organizations can effectively mitigate the risks associated with this critical vulnerability.