Description
A buffer overflow was discovered in Progress DataDirect Connect for ODBC before 08.02.2770 for Oracle. An overly large value for certain options of a connection string may overrun the buffer allocated to process the string value. This allows an attacker to execute code of their choice on an affected host by copying carefully selected data that will be executed as code.
EPSS Score:
2%
Comprehensive Technical Analysis of EUVD-2023-38444
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2023-38444, also known as CVE-2023-34364, is a buffer overflow issue in Progress DataDirect Connect for ODBC before version 08.02.2770 for Oracle. This vulnerability allows an attacker to execute arbitrary code on an affected host by exploiting an overly large value for certain options in a connection string.
Severity Evaluation:
- Base Score: 9.8 (Critical)
- Base Score Version: CVSS:3.1
- Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The CVSS score of 9.8 indicates a critical vulnerability due to the following factors:
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
This high score reflects the potential for severe impact on confidentiality, integrity, and availability of the affected systems.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Network-Based Attacks: Given the attack vector is network-based, an attacker can exploit this vulnerability remotely without requiring local access.
- Connection String Manipulation: The attacker can manipulate the connection string options to include overly large values, leading to a buffer overflow.
Exploitation Methods:
- Crafted Connection Strings: An attacker can craft a malicious connection string with overly large values for specific options.
- Code Execution: By carefully selecting the data to be copied into the buffer, the attacker can execute arbitrary code on the affected host.
3. Affected Systems and Software Versions
Affected Software:
- Progress DataDirect Connect for ODBC before version 08.02.2770 for Oracle.
Affected Systems:
- Any system running the vulnerable versions of Progress DataDirect Connect for ODBC for Oracle.
- Systems that process connection strings from untrusted sources.
4. Recommended Mitigation Strategies
Immediate Mitigation:
- Patching: Upgrade to Progress DataDirect Connect for ODBC version 08.02.2770 or later.
- Input Validation: Implement strict validation on connection string options to prevent overly large values.
- Network Segmentation: Segregate vulnerable systems from untrusted networks to limit exposure.
Long-Term Mitigation:
- Regular Updates: Ensure that all software components are regularly updated to the latest versions.
- Security Audits: Conduct regular security audits and vulnerability assessments.
- Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activities related to connection strings.
5. Impact on European Cybersecurity Landscape
The critical nature of this vulnerability poses significant risks to organizations within the European Union, particularly those relying on Progress DataDirect Connect for ODBC for Oracle. The potential for remote code execution can lead to data breaches, unauthorized access, and disruption of services, impacting the confidentiality, integrity, and availability of critical systems.
Regulatory Compliance:
- Organizations must ensure compliance with GDPR and other relevant regulations by promptly addressing this vulnerability to protect personal data.
- Failure to mitigate this vulnerability could result in regulatory penalties and loss of customer trust.
6. Technical Details for Security Professionals
Vulnerability Details:
- Type: Buffer Overflow
- Location: Connection string processing in Progress DataDirect Connect for ODBC for Oracle.
- Trigger: Overly large values in specific options of the connection string.
Detection:
- Log Analysis: Monitor logs for unusual connection string values and buffer overflow errors.
- Behavioral Analysis: Use behavioral analysis tools to detect anomalous activities that may indicate exploitation attempts.
Response:
- Incident Response Plan: Develop and implement an incident response plan tailored to this vulnerability.
- Forensic Analysis: Conduct forensic analysis to identify the source and extent of any exploitation.
References:
By addressing this vulnerability promptly and comprehensively, organizations can mitigate the risks associated with EUVD-2023-38444 and enhance their overall cybersecurity posture.