CWE-939—Improper Authorization in Handler for Custom URL Scheme

名称

Improper Authorization in Handler for Custom URL Scheme

描述

The product uses a handler for a custom URL scheme, but it does not properly restrict which actors can invoke the handler using the scheme.

Mobile platforms and other architectures allow the use of custom URL schemes to facilitate communication between applications. In the case of iOS, this is the only method to do inter-application communication. The implementation is at the developer's discretion which may open security flaws in the application. An example could be potentially dangerous functionality such as modifying files through a custom URL scheme.

常见后果

范围：

Access Control, Other

影响：

Gain Privileges or Assume Identity, Varies by Context, Bypass Protection Mechanism

注释：

An attacker can access any functionality that is inadvertently accessible to the source.

相关 CWE

• CWE-862Missing AuthorizationHigh
• CWE-940Improper Verification of Source of a Communication Channel