CWE-382: J2EE Bad Practices: Use of System.exit()
CWE版本: 4.18
更新日期: 2025-09-09
弱点描述
A J2EE application uses System.exit(), which also shuts down its container.
扩展描述
It is never a good idea for a web application to attempt to shut down the application container. Access to a function that can shut down the application is an avenue for Denial of Service (DoS) attacks.
常见后果
影响范围: Availability
技术影响: DoS: Crash, Exit, or Restart
潜在缓解措施
阶段: Architecture and Design
策略: Separation of Privilege
描述: The shutdown function should be a privileged function available only to a properly authorized administrative user
阶段: Implementation
描述: Web applications should not call methods that cause the virtual machine to exit, such as System.exit()
阶段: Implementation
描述: Web applications should also not throw any Throwables to the application server as this may adversely affect the container.
阶段: Implementation
描述: Non-web applications may have a main() method that contains a System.exit(), but generally should not call System.exit() from other locations in the code
检测方法
方法: Automated Static Analysis
Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.)
有效性: High
引入模式
| 阶段 | 说明 |
|---|---|
| Implementation | A call to System.exit() is probably part of leftover debug code or code imported from a non-J2EE application. |
适用平台
编程语言
分类映射
| 分类名称 | 条目ID | 条目名称 | 映射适配度 |
|---|---|---|---|
| 7 Pernicious Kingdoms | - | J2EE Bad Practices: System.exit() | - |
| OWASP Top Ten 2004 | A9 | Denial of Service | CWE More Specific |
| The CERT Oracle Secure Coding Standard for Java (2011) | ERR09-J | Do not allow untrusted code to terminate the JVM | - |
| Software Fault Patterns | SFP3 | Use of an improper API | - |