Reino: Errors
Os erros e o processamento de erros representam uma classe de API. Erros relacionados com o processamento de erros são tão comuns que merecem um domínio próprio. Assim como no “abuso de API”, há duas formas de introduzir uma vulnerabilidade de segurança relacionada com erros. A primeira, e mais comum, é processar os erros indevidamente (ou não os processar). A segunda é produzir erros que revelem muitas informações (a possíveis invasores) ou que sejam difíceis de processar.
Poor Error Handling: Return Inside Finally
Abstract
O retorno de dentro de um bloco
finally
fará com que exceções sejam perdidas.Explanation
Uma instrução de retorno dentro de um bloco
Exemplo 1: No seguinte trecho de código, a
finally
fará com que qualquer exceção que possa ser lançada no bloco "try" seja descartada.Exemplo 1: No seguinte trecho de código, a
MagicException
lançada pela segunda chamada para doMagic
com true
transmitido para ela nunca será entregue para o chamador. A instrução de retorno dentro do bloco finally
fará com que a exceção seja descartada.
public class MagicTrick {
public static class MagicException extends Exception { }
public static void main(String[] args) {
System.out.println("Watch as this magical code makes an " +
"exception disappear before your very eyes!");
System.out.println("First, the kind of exception handling " +
"you're used to:");
try {
doMagic(false);
} catch (MagicException e) {
// An exception will be caught here
e.printStackTrace();
}
System.out.println("Now, the magic:");
try {
doMagic(true);
} catch (MagicException e) {
// No exception caught here, the finally block ate it
e.printStackTrace();
}
System.out.println("tada!");
}
public static void doMagic(boolean returnFromFinally)
throws MagicException {
try {
throw new MagicException();
}
finally {
if (returnFromFinally) {
return;
}
}
}
}
References
[1] ERR04-J. Do not complete abruptly from a finally block CERT
[2] Standards Mapping - Common Weakness Enumeration CWE ID 584
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-003272
[4] Standards Mapping - FIPS200 AU
[5] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 SA-15 Development Process and Standards and Tools (P2), SI-11 Error Handling (P2)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 SA-15 Development Process and Standards and Tools, SI-11 Error Handling
[8] Standards Mapping - OWASP Top 10 2004 A7 Improper Error Handling
[9] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.7
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.2, Requirement 6.5.6
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.5
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.5
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.5
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.5
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[18] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention
[19] 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
[20] 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
[21] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3120 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3120 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3120 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3120 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3120 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3120 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3120 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[42] 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_return_inside_finally
Abstract
O retorno de dentro de um bloco
finally
fará com que exceções sejam perdidas.Explanation
Uma instrução de retorno dentro de um bloco
Exemplo 1: No seguinte trecho de código, a
finally
fará com que qualquer exceção que possa ser lançada no bloco "try" seja descartada.Exemplo 1: No seguinte trecho de código, a
exception
lançada pela segunda chamada para doMagic
com True
transmitido para ela nunca será entregue para o chamador. A instrução de retorno dentro do bloco finally
fará com que a exceção seja descartada."disappear before your very eyes!" . PHP_EOL;
echo "First, the kind of exception handling " .
"you're used to:" . PHP_EOL;
try {
doMagic(False);
} catch (exception $e) {
// An exception will be caught here
echo $e->getMessage();
}
echo "Now, the magic:" . PHP_EOL;
try {
doMagic(True);
} catch (exception $e) {
// No exception caught here, the finally block ate it
echo $e->getMessage();
}
echo "Tada!" . PHP_EOL;
function doMagic($returnFromFinally) {
try {
throw new Exception("Magic Exception" . PHP_EOL);
}
finally {
if ($returnFromFinally) {
return;
}
}
}
?>
References
[1] ERR04-J. Do not complete abruptly from a finally block CERT
[2] Standards Mapping - Common Weakness Enumeration CWE ID 584
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001312, CCI-001314, CCI-003272
[4] Standards Mapping - FIPS200 AU
[5] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 SA-15 Development Process and Standards and Tools (P2), SI-11 Error Handling (P2)
[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 SA-15 Development Process and Standards and Tools, SI-11 Error Handling
[8] Standards Mapping - OWASP Top 10 2004 A7 Improper Error Handling
[9] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.7
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.2, Requirement 6.5.6
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.5
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.5
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.5
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.5
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.5
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[18] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.6 - Sensitive Data Retention
[19] 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
[20] 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
[21] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3120 CAT II
[22] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3120 CAT II
[23] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3120 CAT II
[24] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3120 CAT II
[25] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3120 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3120 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3120 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002570 CAT II, APSC-DV-002580 CAT II, APSC-DV-003235 CAT II
[42] 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.php.poor_error_handling_return_inside_finally