CWE-321 使用硬编码的密码学密钥

Use of Hard-coded Cryptographic Key

结构: Simple

Abstraction: Base

状态: Draft

被利用可能性: High

基本描述

The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered.

相关缺陷

  • cwe_Nature: ChildOf cwe_CWE_ID: 798 cwe_View_ID: 1000 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 798 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
Access Control ['Bypass Protection Mechanism', 'Gain Privileges or Assume Identity'] If hard-coded cryptographic keys are used, it is almost certain that malicious users will gain access through the account in question.

可能的缓解方案

Architecture and Design

策略:

Prevention schemes mirror that of hard-coded password storage.

示例代码

例

The following code examples attempt to verify a password using a hard-coded cryptographic key.

bad C

int VerifyAdmin(char *password) {
if (strcmp(password,"68af404b513073584c4b6f22b6c63e6b")) {

printf("Incorrect Password!\n");
return(0);
}
printf("Entering Diagnostic Mode...\n");
return(1);
}

bad Java

public boolean VerifyAdmin(String password) {
if (password.equals("68af404b513073584c4b6f22b6c63e6b")) {
System.out.println("Entering Diagnostic Mode...");
return true;
}
System.out.println("Incorrect Password!");
return false;

bad C#

int VerifyAdmin(String password) {
if (password.Equals("68af404b513073584c4b6f22b6c63e6b")) {
Console.WriteLine("Entering Diagnostic Mode...");
return(1);
}
Console.WriteLine("Incorrect Password!");
return(0);
}

The cryptographic key is within a hard-coded string value that is compared to the password. It is likely that an attacker will be able to read the key and compromise the system.

Notes

分类映射

映射的分类名 ImNode ID Fit Mapped Node Name
CLASP Use of hard-coded cryptographic key
OWASP Top Ten 2007 A8 CWE More Specific Insecure Cryptographic Storage
OWASP Top Ten 2007 A9 CWE More Specific Insecure Communications
OWASP Top Ten 2004 A8 CWE More Specific Insecure Storage
Software Fault Patterns SFP33 Hardcoded sensitive data