Overview
CVE-2025-13806 describes a high-severity security vulnerability affecting nutzam NutzBoot up to version 2.6.0-SNAPSHOT. The vulnerability resides within the Transaction API, specifically in the EthModule.java file of the nutzboot-demo-simple-web3j component. Successful exploitation allows for unauthorized transaction manipulation.
Technical Details
The vulnerability stems from improper authorization checks when handling arguments related to transaction execution, specifically the from, to, and wei parameters. An attacker can manipulate these parameters to bypass intended authorization controls, potentially leading to unauthorized fund transfers or other malicious actions. The affected file is nutzboot-demo/nutzboot-demo-simple/nutzboot-demo-simple-web3j/src/main/java/io/nutz/demo/simple/module/EthModule.java.
The exploit has been publicly disclosed, meaning that proof-of-concept (PoC) code is available and actively circulating, increasing the risk of exploitation.
CVSS Analysis
- CVSS Score: 7.3
- Severity: HIGH
A CVSS score of 7.3 indicates a significant risk. The availability of a public exploit further amplifies the danger, as attackers can readily leverage the vulnerability.
Possible Impact
Exploitation of CVE-2025-13806 can result in:
- Unauthorized transfer of funds.
- Compromise of sensitive transaction data.
- Reputational damage for affected organizations.
- Potential financial losses.
Mitigation or Patch Steps
Currently, information on a specific patch or updated version addressing CVE-2025-13806 is unavailable. However, the following steps are recommended:
- Immediate Action: If using NutzBoot version 2.6.0-SNAPSHOT or earlier, immediately isolate the affected component or application if possible.
- Code Review: Conduct a thorough code review of the
EthModule.javafile (and related transaction handling logic) to identify and correct the inadequate authorization checks. Focus on validating thefrom,to, andweiparameters. - Input Validation: Implement robust input validation and sanitization techniques to prevent malicious parameter manipulation.
- Access Control: Enforce strict access control policies to limit the impact of potential breaches.
- Monitoring: Implement monitoring and alerting systems to detect suspicious transaction activity.
- Stay Updated: Monitor official NutzBoot channels and security advisories for updates and patches related to this vulnerability. Apply any available patches immediately upon release.
Disclaimer: These mitigation steps are general recommendations. A complete solution requires a thorough understanding of the application’s architecture and security context. Consult with a security expert for tailored advice.
