Description
Improper limitation of a pathname to a restricted directory ('path traversal') in Azure allows an unauthorized attacker to elevate privileges over a network.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-14449
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2025-14449 pertains to a path traversal issue in Azure, specifically within the Azure AI Document Intelligence Studio. This vulnerability allows an unauthorized attacker to elevate privileges over a network, which is a critical concern. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a severe vulnerability. The scoring vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 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 privileges are required to exploit the vulnerability.
- User Interaction (UI): None (N) - No user interaction is required.
- Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
- Confidentiality (C): High (H) - Complete loss of confidentiality.
- Integrity (I): High (H) - Complete loss of integrity.
- Availability (A): High (H) - Complete loss of availability.
- Exploit Code Maturity (E): Unproven (U) - No exploit code is available.
- Remediation Level (RL): Official-Fix (O) - An official fix is available.
- Report Confidence (RC): Confirmed (C) - The vulnerability has been confirmed.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector for this vulnerability is through network access. An attacker could exploit the path traversal issue by manipulating file paths to access restricted directories or files. This could lead to unauthorized access to sensitive information, modification of critical files, or execution of arbitrary code.
Potential exploitation methods include:
- Directory Traversal Attacks: By manipulating URLs or file paths, an attacker can navigate to restricted directories.
- Privilege Escalation: Once access is gained, the attacker can elevate privileges to perform unauthorized actions.
- Data Exfiltration: Sensitive data can be accessed and exfiltrated.
- Code Execution: Arbitrary code can be executed, leading to further compromise of the system.
3. Affected Systems and Software Versions
The vulnerability affects the Azure AI Document Intelligence Studio, specifically versions prior to 1.0.03019.1-official-7241c17a. Organizations using this software within the specified version range are at risk and should prioritize updating to the latest version.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Immediately apply the official patch provided by Microsoft.
- Access Controls: Implement strict access controls and least privilege principles to limit network access.
- Network Segmentation: Segment the network to isolate critical systems and reduce the attack surface.
- Monitoring and Logging: Enhance monitoring and logging to detect any suspicious activities related to path traversal.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address similar issues.
5. Impact on European Cybersecurity Landscape
The impact of this vulnerability on the European cybersecurity landscape is significant due to the widespread use of Azure services across various industries. The potential for unauthorized access and privilege escalation poses a substantial risk to data integrity, confidentiality, and availability. Organizations in Europe must ensure compliance with GDPR and other relevant regulations by promptly addressing this vulnerability to protect sensitive data and maintain trust.
6. Technical Details for Security Professionals
For security professionals, the following technical details are crucial:
- Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and block path traversal attempts.
- Incident Response: Develop an incident response plan specific to path traversal vulnerabilities, including steps for containment, eradication, and recovery.
- Code Review: Conduct thorough code reviews to identify and remediate similar path traversal issues in other applications.
- Security Training: Provide training for developers and IT staff on secure coding practices and the importance of input validation.
- Third-Party Dependencies: Regularly review and update third-party dependencies to ensure they are free from known vulnerabilities.
By addressing these points, organizations can effectively manage the risk associated with EUVD-2025-14449 and enhance their overall cybersecurity posture.
Conclusion
The path traversal vulnerability in Azure AI Document Intelligence Studio, as described in EUVD-2025-14449, is a critical issue that requires immediate attention. By understanding the severity, potential attack vectors, and mitigation strategies, organizations can protect their systems and data from unauthorized access and privilege escalation. Prompt action and continuous vigilance are essential to safeguard against such vulnerabilities in the dynamic cybersecurity landscape.