CWEweakness

CWE-576 EJB Bad Practices: Use of Java I/O

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Abstraction
Variant
Structure
Simple
Status
Draft
Languages
Java
CWE version
5.0

Description

The product violates the Enterprise JavaBeans (EJB) specification by using the java.io package.

Extended description

The Enterprise JavaBeans specification requires that every bean provider follow a set of programming guidelines designed to ensure that the bean will be portable and behave consistently in any EJB container. In this case, the product violates the following EJB guideline: "An enterprise bean must not use the java.io package to attempt to access files and directories in the file system." The specification justifies this requirement in the following way: "The file system APIs are not well-suited for business components to access data. Business components should use a resource manager API, such as JDBC, to store data."

Common consequences

• Other: Quality Degradation

Potential mitigations

• [Implementation] Do not use Java I/O when writing EJBs.

Detection methods

• 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.)

Related

Child of · CWE (1)

  • CWE-695 Use of Low-Level Functionality weakness