CVE-2024-51363 in Hodoku
Summary
by MITRE • 12/04/2024
Insecure deserialization in Hodoku v2.3.0 to v2.3.2 allows attackers to execute arbitrary code.
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Analysis
by VulDB Data Team • 12/04/2024
The vulnerability CVE-2024-51363 represents a critical insecure deserialization flaw affecting Hodoku versions 2.3.0 through 2.3.2. This vulnerability falls under the category of CWE-502, which specifically addresses deserialization of untrusted data, making it a prime target for attackers seeking to exploit application weaknesses. The flaw exists within the software's handling of serialized data structures, where the application fails to properly validate or sanitize input before processing potentially malicious serialized objects. This creates an opportunity for remote code execution through carefully crafted serialized data that can be manipulated to trigger arbitrary code execution on the target system.
The technical implementation of this vulnerability stems from the application's failure to implement proper input validation mechanisms during the deserialization process. When Hodoku processes serialized data, it does not perform adequate checks to ensure that the incoming data originates from trusted sources or conforms to expected data structures. Attackers can exploit this by crafting malicious serialized objects containing malicious payloads that will be executed when the application attempts to deserialize the data. The vulnerability is particularly dangerous because it allows for remote code execution without requiring authentication, making it accessible to any attacker who can send serialized data to the vulnerable application.
The operational impact of this vulnerability extends beyond simple code execution, as it can enable attackers to gain full control over the affected system. This includes the potential to install malware, steal sensitive data, modify system configurations, or use the compromised system as a pivot point for further attacks within the network. The vulnerability affects the core functionality of Hodoku, which is a Sudoku puzzle solver and generator, but the implications are severe enough that any system running affected versions could become compromised. The attack surface is broad since the vulnerability can be exploited through various entry points where serialized data is processed, including web interfaces, file imports, or network communications.
Security practitioners should immediately implement mitigations including updating to the latest version of Hodoku where the vulnerability has been patched, implementing network segmentation to limit access to vulnerable systems, and monitoring for suspicious deserialization activities. The ATT&CK framework categorizes this type of vulnerability under T1210 - Exploitation of Remote Services and T1059 - Command and Scripting Interpreter, highlighting the multi-stage nature of attacks that can leverage such flaws. Organizations should also consider implementing application whitelisting policies to prevent execution of unauthorized code and establish robust input validation processes to prevent similar vulnerabilities in other applications. The vulnerability demonstrates the critical importance of proper secure coding practices and the need for regular security assessments to identify and remediate insecure deserialization patterns in software applications.