CVE-2026-107829 in Jivejdon
Summary
by MITRE • 10/09/2026
Jivejdon through 5.0 contains a weak password storage vulnerability that stores account passwords as unsalted MD5 digests via ToolsUtil.hash() in AccountDaoSql. Attackers who obtain the user table through database access or SQL injection can crack passwords with precomputed tables or GPU attacks.
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Analysis
by VulDB Data Team • 10/09/2026
The security flaw identified within Jivejdon versions up to 5.0 represents a critical failure in cryptographic implementation, specifically concerning how user credentials are persisted and protected against unauthorized retrieval. The vulnerability stems from the use of unsalted MD5 hashing for password storage, implemented via the ToolsUtil.hash method invoked by AccountDaoSql. This design choice fundamentally undermines the confidentiality of user accounts because it relies on an algorithm that is both cryptographically broken and computationally inexpensive to reverse. In modern security standards, passwords must never be stored in a format that allows for efficient offline cracking, yet this implementation provides exactly such an opportunity for any adversary who gains access to the underlying database or exploits SQL injection vulnerabilities to extract user records.
From a technical perspective, MD5 is widely recognized as unsuitable for password hashing due to its speed and susceptibility to collision attacks. More importantly, the absence of salt means that identical passwords result in identical hash values across all users. This characteristic enables attackers to utilize precomputed lookup tables known as rainbow tables or employ high-speed GPU-based brute force techniques to reverse the hashes into plaintext credentials with minimal effort. The lack of salting also facilitates parallel cracking attacks where multiple password guesses can be tested simultaneously against many accounts, significantly reducing the time required to compromise a large number of user identities compared to systems that implement proper salting and key stretching algorithms like bcrypt or Argon2.
The operational impact of this vulnerability is severe, as it directly compromises account integrity and facilitates lateral movement within an organization if credentials are reused across other services. Once passwords are cracked, attackers can impersonate legitimate users, access sensitive data, modify configurations, or escalate privileges depending on the roles associated with those accounts. This aligns closely with CWE-757, which defines a weakness related to the selection of cryptographic algorithms that do not provide adequate security guarantees for password storage. Furthermore, this flaw supports subsequent attack vectors categorized under MITRE ATT&CK techniques such as T1003, specifically OS Credential Dumping or Database Credential Harvesting, where stolen credentials are leveraged for unauthorized access and persistence within the target environment.
To mitigate this risk, immediate remediation is required to replace the MD5 hashing mechanism with a robust, adaptive password hashing function designed to resist brute force attacks. Algorithms such as bcrypt, scrypt, Argon2id, or PBKDF2 should be implemented, ensuring that each password hash includes a unique, cryptographically random salt and utilizes sufficient computational cost parameters like iteration counts or memory hardness settings. Additionally, developers must enforce strong password policies to increase entropy and consider implementing multi-factor authentication to add an additional layer of defense beyond static credentials. Regular security audits and code reviews focusing on cryptographic implementations are essential to prevent similar weaknesses from being introduced in future updates or related modules within the Jivejdon ecosystem.