CWE-528: Exposure of Core Dump File to an Unauthorized Control Sphere
Learn about CWE-528 (Exposure of Core Dump File to an Unauthorized Control Sphere), its security impact, exploitation methods, and prevention guidelines.
What is Exposure of Core Dump File to an Unauthorized Control Sphere?
• Overview: This vulnerability occurs when a core dump file, which contains a memory snapshot of a program at a specific time (usually after a crash), is generated and stored in a way that allows unauthorized access. Core dumps can inadvertently expose sensitive information such as passwords, cryptographic keys, or proprietary algorithms.
• Exploitation Methods:
- Attackers can exploit this vulnerability by accessing directories or storage locations where core dumps are kept, especially if file permissions are misconfigured.
- Common attack patterns include searching for core dump files in predictable locations or using automated tools to scan and retrieve these files from accessible directories.
• Security Impact:
- Direct consequences include unauthorized access to sensitive data contained within the core dump file, such as memory contents, which can lead to data breaches.
- Potential cascading effects involve attackers gaining insights into the system’s internal workings, which can help in crafting further attacks or exploiting other vulnerabilities.
- Business impact includes potential legal liabilities, damage to brand reputation, and financial losses due to data breaches.
• Prevention Guidelines:
- Specific code-level fixes include configuring the application to disable core dump generation if not needed, or ensuring that core dumps do not contain sensitive information.
- Security best practices involve setting strict file system permissions, using secure storage locations, and regularly auditing access controls.
- Recommended tools and frameworks include using security policies and configurations to manage core dump generation and storage, employing intrusion detection systems, and leveraging operating system features to restrict core dump accessibility.
Technical Details
Likelihood of Exploit: Not specified
Affected Languages: Not specified
Affected Technologies: Not specified