CWE-688 使用不正确变量或索引作为参数的函数调用

Function Call With Incorrect Variable or Reference as Argument

结构: Simple

Abstraction: Variant

状态: Draft

被利用可能性: unkown

基本描述

The software calls a function, procedure, or routine, but the caller specifies the wrong variable or reference as one of the arguments, which may lead to undefined behavior and resultant weaknesses.

相关缺陷

  • cwe_Nature: ChildOf cwe_CWE_ID: 628 cwe_View_ID: 1000 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 628 cwe_View_ID: 699 cwe_Ordinal: Primary

适用平台

Language: [{'cwe_Name': 'C', 'cwe_Prevalence': 'Undetermined'}, {'cwe_Name': 'Perl', 'cwe_Prevalence': 'Undetermined'}]

常见的影响

范围 影响 注释
Other Quality Degradation

检测方法

Other

While this weakness might be caught by the compiler in some languages, it can occur more frequently in cases in which the called function accepts variable numbers of arguments, such as format strings in C. It also can occur in loosely typed languages or environments. This might require an understanding of intended program behavior or design to determine whether the value is incorrect.

可能的缓解方案

Testing

策略:

Because this function call often produces incorrect behavior it will usually be detected during testing or normal operation of the software. During testing exercise all possible control paths will typically expose this weakness except in rare cases when the incorrect function call accidentally produces the correct results or if the provided argument type is very similar to the expected argument type.

示例代码

例

In the following Java snippet, the accessGranted() method is accidentally called with the static ADMIN_ROLES array rather than the user roles.

bad Java

private static final String[] ADMIN_ROLES = ...;
public boolean void accessGranted(String resource, String user) {
String[] userRoles = getUserRoles(user);
return accessGranted(resource, ADMIN_ROLES);
}

private boolean void accessGranted(String resource, String[] userRoles) {

// grant or deny access based on user roles
...
}

分析过的案例

标识 说明 链接