CWEweakness

CWE-9 J2EE Misconfiguration: Weak Access Permissions for EJB Methods

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Abstraction
Variant
Structure
Simple
Status
Draft
Languages
Java
CWE version
5.0

Description

If elevated access rights are assigned to EJB methods, then an attacker can take advantage of the permissions to exploit the product.

Extended description

If the EJB deployment descriptor contains one or more method permissions that grant access to the special ANYONE role, it indicates that access control for the application has not been fully thought through or that the application is structured in such a way that reasonable access control restrictions are impossible.

Common consequences

• Other: Other

Potential mitigations

• [Architecture and Design, System Configuration] Follow the principle of least privilege when assigning access rights to EJB methods. Permission to invoke EJB methods should not be granted to the ANYONE role.

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-266 Incorrect Privilege Assignment weakness