CWE-346 源验证错误
Origin Validation Error
结构: Simple
Abstraction: Base
状态: Draft
被利用可能性: unkown
基本描述
The software does not properly verify that the source of data or communication is valid.
相关缺陷
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cwe_Nature: ChildOf cwe_CWE_ID: 345 cwe_View_ID: 1000 cwe_Ordinal: Primary
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cwe_Nature: ChildOf cwe_CWE_ID: 345 cwe_View_ID: 1003 cwe_Ordinal: Primary
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cwe_Nature: ChildOf cwe_CWE_ID: 345 cwe_View_ID: 699 cwe_Ordinal: Primary
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cwe_Nature: ChildOf cwe_CWE_ID: 284 cwe_View_ID: 1000
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cwe_Nature: ChildOf cwe_CWE_ID: 284 cwe_View_ID: 699
适用平台
Language: {'cwe_Class': 'Language-Independent', 'cwe_Prevalence': 'Undetermined'}
常见的影响
| 范围 | 影响 | 注释 |
|---|---|---|
| ['Access Control', 'Other'] | ['Gain Privileges or Assume Identity', 'Varies by Context'] | An attacker can access any functionality that is inadvertently accessible to the source. |
示例代码
例
This Android application will remove a user account when it receives an intent to do so:
bad Java
MyReceiver receiver = new MyReceiver();
registerReceiver(receiver, filter);
public class DeleteReceiver extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
destroyUserData(userID);
}
}
This application does not check the origin of the intent, thus allowing any malicious application to remove a user. Always check the origin of an intent, or create a whitelist of trusted applications using the manifest.xml file.
例
These Android and iOS applications intercept URL loading within a WebView and perform special actions if a particular URL scheme is used, thus allowing the Javascript within the WebView to communicate with the application:
bad Java
// Android
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url){
return false;
}
else{
}
}
}
bad Objective-C
// iOS
-(BOOL) webView:(UIWebView )exWebView shouldStartLoadWithRequest:(NSURLRequest )exRequest navigationType:(UIWebViewNavigationType)exNavigationType
{
if ([[URL scheme] isEqualToString:@"exampleScheme"])
{
if ([functionString hasPrefix:@"specialFunction"])
{
// Make data available back in webview.
UIWebView *webView = [self writeDataToView:[URL query]];
}
return NO;
}
return YES;
}
A call into native code can then be initiated by passing parameters within the URL:
attack JavaScript
Because the application does not check the source, a malicious website loaded within this WebView has the same access to the API as a trusted site.
分析过的案例
| 标识 | 说明 | 链接 |
|---|---|---|
| CVE-2000-1218 | DNS server can accept DNS updates from hosts that it did not query, leading to cache poisoning | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2000-1218 |
| CVE-2005-0877 | DNS server can accept DNS updates from hosts that it did not query, leading to cache poisoning | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0877 |
| CVE-2001-1452 | DNS server caches glue records received from non-delegated name servers | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2001-1452 |
| CVE-2005-2188 | user ID obtained from untrusted source (URL) | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2188 |
| CVE-2003-0174 | LDAP service does not verify if a particular attribute was set by the LDAP server | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0174 |
| CVE-1999-1549 | product does not sufficiently distinguish external HTML from internal, potentially dangerous HTML, allowing bypass using special strings in the page title. Overlaps special elements. | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-1999-1549 |
| CVE-2003-0981 | product records the reverse DNS name of a visitor in the logs, allowing spoofing and resultant XSS. | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0981 |
Notes
Maintenance
This entry has some significant overlap with other CWE entries and may need some clarification. See terminology notes.
Terminology
The "Origin Validation Error" term was used by Taimur Aslam in his August 1995 thesis. Although not formally defined, an issue is considered to be an origin validation error if either (1) "an object [accepts] input from an unauthorized subject," or (2) "the system [fails] to properly or completely authenticate a subject." A later section says that an origin validation error can occur when the system (1) "does not properly authenticate a user or process" or (2) "does not properly authenticate the shared data or libraries." The only example provided in the thesis (covered by OSVDB:57615) involves a setuid program running command-line arguments without dropping privileges. So, this definition (and its examples in the thesis) effectively cover other weaknesses such as CWE-287 (Improper Authentication), CWE-285 (Improper Authorization), and CWE-250 (Execution with Unnecessary Privileges). There appears to be little usage of this term today, except in the SecurityFocus vulnerability database, where the term is used for a variety of issues, including web-browser problems that allow violation of the Same Origin Policy and improper validation of the source of an incoming message.
分类映射
| 映射的分类名 | ImNode ID | Fit | Mapped Node Name |
|---|---|---|---|
| PLOVER | Origin Validation Error |
相关攻击模式
- CAPEC-111
- CAPEC-141
- CAPEC-142
- CAPEC-160
- CAPEC-21
- CAPEC-384
- CAPEC-385
- CAPEC-386
- CAPEC-387
- CAPEC-388
- CAPEC-510
- CAPEC-59
- CAPEC-60
- CAPEC-75
- CAPEC-76
- CAPEC-89
引用
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