CVE-2024-48112 in Thinkphp
Summary
by MITRE • 10/30/2024
A deserialization vulnerability in the component \controller\Index.php of Thinkphp v6.1.3 to v8.0.4 allows attackers to execute arbitrary code.
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Analysis
by VulDB Data Team • 10/31/2024
This vulnerability represents a critical deserialization flaw that affects the component in question, potentially allowing remote code execution or arbitrary code manipulation within the affected system. The vulnerability stems from insufficient validation of serialized data objects during the deserialization process, creating an attack surface where maliciously crafted input can trigger unintended behavior. Such weaknesses are particularly dangerous because they often bypass traditional security controls and can lead to complete system compromise.
The technical implementation of this vulnerability involves the improper handling of serialized data structures, typically occurring when applications deserialize untrusted input without adequate sanitization or validation mechanisms. Attackers can exploit this by crafting specially formatted serialized objects that, when processed by the vulnerable component, execute malicious code within the context of the running application. This type of vulnerability commonly occurs in systems that use object serialization protocols such as java serialization, xml serialization, or similar mechanisms that convert objects into serial formats for storage or transmission.
From an operational perspective, this vulnerability poses significant risks to system integrity and data confidentiality, particularly in environments where the affected component handles sensitive information or operates with elevated privileges. The impact extends beyond immediate code execution capabilities to include potential privilege escalation, data exfiltration, and system persistence mechanisms. Organizations may experience unauthorized access to critical systems, disruption of services, and potential compliance violations depending on the nature of the data processed by the vulnerable component.
Security mitigations for this vulnerability should focus on implementing robust input validation and sanitization processes for all serialized data, employing secure deserialization practices, and considering the use of alternative data exchange formats that do not rely on object serialization. Organizations should also implement network segmentation, monitor for suspicious deserialization activities, and ensure regular patching of affected components. The vulnerability aligns with CWE-502 which specifically addresses deserialization of untrusted data, and may map to ATT&CK techniques related to command and control, privilege escalation, and execution through serialized objects. Additional protective measures include disabling unnecessary deserialization features, implementing application firewalls, and conducting thorough code reviews to identify similar patterns throughout the application codebase.