CWE-230 缺失值处理不恰当

admin 2022年1月5日21:04:05CWE(弱点枚举)评论19 views1798字阅读5分59秒阅读模式

CWE-230 缺失值处理不恰当

Improper Handling of Missing Values

结构: Simple

Abstraction: Variant

状态: Draft

被利用可能性: unkown

基本描述

The software does not handle or incorrectly handles when a parameter, field, or argument name is specified, but the associated value is missing, i.e. it is empty, blank, or null.

相关缺陷

  • cwe_Nature: ChildOf cwe_CWE_ID: 229 cwe_View_ID: 1000 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 229 cwe_View_ID: 699 cwe_Ordinal: Primary

适用平台

Language: {'cwe_Class': 'Language-Independent', 'cwe_Prevalence': 'Undetermined'}

常见的影响

范围 影响 注释
Integrity Unexpected State

示例代码

This application has registered to handle a URL when sent an intent:

bad Java


...

IntentFilter filter = new IntentFilter("com.example.URLHandler.openURL");
MyReceiver receiver = new MyReceiver();
registerReceiver(receiver, filter);
...

public class UrlHandlerReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {

if("com.example.URLHandler.openURL".equals(intent.getAction())) {

String URL = intent.getStringExtra("URLToOpen");
int length = URL.length();

...

}

}

}

The application assumes the URL will always be included in the intent. When the URL is not present, the call to getStringExtra() will return null, thus causing a null pointer exception when length() is called.

分析过的案例

标识 说明 链接
CVE-2002-0422 Blank Host header triggers resultant infoleak. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-0422
CVE-2000-1006 Blank "charset" attribute in MIME header triggers crash. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2000-1006
CVE-2004-1504 Blank parameter causes external error infoleak. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1504
CVE-2005-2053 Blank parameter causes external error infoleak. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2053

Notes

分类映射

映射的分类名 ImNode ID Fit Mapped Node Name
PLOVER Missing Value Error
The CERT Oracle Secure Coding Standard for Java (2011) ERR08-J Do not catch NullPointerException or any of its ancestors

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  • 本文由 发表于 2022年1月5日21:04:05
  • 转载请保留本文链接(CN-SEC中文网:感谢原作者辛苦付出):
                  CWE-230 缺失值处理不恰当 http://cn-sec.com/archives/612822.html

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