界: Errors
错误和错误处理代表一类 API。与错误处理相关的错误非常普遍，因此它们应该拥有自己的专属章节。与“API 滥用”一样，有两种情况可以引入与错误相关的安全漏洞：最常见的一种是错误处理不当（或者根本不处理）。第二种是产生错误，这些错误要么（向潜在的攻击者）泄露过多信息，要么难以处理。
Poor Error Handling: Throw Inside Finally
Abstract
使用
finally 块中的 throw 语句会通过 try-catch-finally 破坏逻辑进度。Explanation
在 Java 中，
例 1：在下列代码中，抛出
finally 块通常在其相应的 try-catch 块之后执行，该块通常用于自由分配的资源，例如文件句柄或数据库指针。由于破坏了正常的程序执行，在 finally 块中抛出异常会绕过关键的清除代码。 例 1：在下列代码中，抛出
FileNotFoundException 时，将绕过对 stmt.close() 的调用。
public void processTransaction(Connection conn) throws FileNotFoundException
{
FileInputStream fis = null;
Statement stmt = null;
try
{
stmt = conn.createStatement();
fis = new FileInputStream("badFile.txt");
...
}
catch (FileNotFoundException fe)
{
log("File not found.");
}
catch (SQLException se)
{
//handle error
}
finally
{
if (fis == null)
{
throw new FileNotFoundException();
}
if (stmt != null)
{
try
{
stmt.close();
}
catch (SQLException e)
{
log(e);
}
}
}
}
References
[1] Sun Microsystems, Inc. Java Sun Tutorial
[2] ERR05-J. Do not let checked exceptions escape from a finally block CERT
[3] Standards Mapping - Common Weakness Enumeration CWE ID 398
[4] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-003272
[5] Standards Mapping - FIPS200 AU
[6] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[7] Standards Mapping - NIST Special Publication 800-53 Revision 4 SA-15 Development Process and Standards and Tools (P2), SI-11 Error Handling (P2)
[8] Standards Mapping - NIST Special Publication 800-53 Revision 5 SA-15 Development Process and Standards and Tools, SI-11 Error Handling
[9] Standards Mapping - OWASP Top 10 2004 A7 Improper Error Handling
[10] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.7
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.2, Requirement 6.5.6
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.5
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.5
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.5
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.5
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[19] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention
[20] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.6 - Sensitive Data Retention, Control Objective B.3.2 - Terminal Software Attack Mitigation
[21] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.6 - Sensitive Data Retention, Control Objective B.3.2 - Terminal Software Attack Mitigation
[22] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3120 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3120 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3120 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3120 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3120 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3120 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3120 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
desc.structural.java.poor_error_handling_throw_inside_finally