Security

NutzBoot Ethereum Wallet Handler Exposed by Remote Information Disclosure Flaw

A critical flaw in the NutzBoot Ethereum Wallet Handler permits remote information disclosure, immediately compromising confidential user wallet data.
December 1, 20253 min

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Briefing

A newly disclosed vulnerability, CVE-2025-13804, in the nutzam NutzBoot framework’s Ethereum Wallet Handler component presents a severe, unpatched threat to all integrated applications. This information disclosure flaw allows remote attackers to manipulate an unknown function within the Java module, leading to the unauthorized exposure of confidential Ethereum wallet data and transaction details. Immediate consequence is a critical compromise of data integrity and user privacy for any application relying on this specific dependency. This high-risk vulnerability, with a CVSS score of 5.3, currently has publicly released exploit code, demanding immediate mitigation.

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Context

Prevailing risk in the decentralized application ecosystem involves supply chain attacks leveraging third-party dependencies and open-source components. Logic flaws and insecure access controls in auxiliary modules are frequently exploited vectors for privilege escalation or data exfiltration. The reliance on external, unverified libraries for core functions like wallet handling creates an inherent and persistent attack surface.

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Analysis

The compromise targets the Ethereum Wallet Handler component, specifically the EthModule.java file within the NutzBoot framework. Attack success relies on remote manipulation of an unknown function, which bypasses existing controls to trigger the information disclosure. This flaw is successful because the affected function lacks proper input sanitization and access control checks, allowing an attacker to coerce the system into returning sensitive data. The remote vector requires no user interaction or elevated privileges, lowering the barrier to entry for exploitation.

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Parameters

  • CVE-2025-13804 → The official identifier for this critical information disclosure vulnerability.
  • CVSS 4.0 Score 5.3 → The assigned severity rating, indicating a medium-level but publicly known risk.
  • Affected Component → The Ethereum Wallet Handler component of the NutzBoot framework up to version 2.6.0-SNAPSHOT.
  • Confirmed Loss → $0 → The current confirmed financial loss, as no in-the-wild attacks are reported yet.

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Outlook

Immediate mitigation requires all developers using the NutzBoot framework up to version 2.6.0-SNAPSHOT to halt deployment and audit their implementation for compensating controls. Contagion risk is limited to applications relying on this specific dependency, but the incident establishes a new best practice → rigorous, continuous auditing of all third-party dependencies, especially those handling private keys or sensitive data. Future security standards must mandate a zero-trust model for all imported library functions.

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Verdict

This information disclosure vulnerability confirms that third-party software dependencies are a persistent and under-addressed critical risk in the digital asset supply chain.

Information disclosure, Remote code execution, Wallet handler component, Ethereum wallet data, Supply chain risk, Software framework flaw, Sensitive data leak, Public exploit code, Systemic vulnerability, Privilege escalation risk, Core security process, Network attack vector, Application layer threat, Decentralized application security, Codebase vulnerability, Third party dependency, Critical patch needed, Zero day vulnerability, Remote manipulation, Wallet security failure, Blockchain application risk, Asset management security, Data integrity compromise, Transaction detail exposure, Systemic risk modeling Signal Acquired from → Live Threat Intelligence

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information disclosure

Definition ∞ Information disclosure involves making relevant data and facts publicly accessible.

decentralized application

Definition ∞ A decentralized application, commonly known as a dApp, is a software program that runs on a decentralized network, typically a blockchain, rather than a centralized server.

compromise

Definition ∞ A 'compromise' in the digital asset space refers to an agreement reached between differing parties, often involving concessions on key points.

vulnerability

Definition ∞ A vulnerability refers to a flaw or weakness in a system, protocol, or smart contract that could be exploited by malicious actors to compromise its integrity, security, or functionality.

risk

Definition ∞ Risk refers to the potential for loss or undesirable outcomes.

framework

Definition ∞ A framework provides a foundational structure or system that can be adapted or extended for specific purposes.

third-party

Definition ∞ A 'third-party' in the cryptocurrency ecosystem is an entity or individual that is not directly involved in a specific transaction or protocol interaction but plays a role in facilitating or verifying it.

supply chain

Definition ∞ A supply chain is the network of all the individuals, companies, resources, activities, and technologies involved in the creation and sale of a product, from the delivery of source materials from the supplier to the manufacturer, through to its eventual sale to the end consumer.

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