Reino: Security Features

La seguridad de un software no es un software de seguridad. Nos preocupamos de cuestiones como la autenticación, el control de acceso, la confidencialidad, la criptografía y la gestión de privilegios.

Weak Encryption: Missing Required Step

Abstract

El código se salta la llamada a un paso necesario durante el proceso de generación de clave simétrica, cifrado o descifrado.

Explanation

La generación de claves simétricas y el cifrado y descifrado de secretos implica varios pasos y saltarse un paso necesario puede comprometer la seguridad de las claves simétricas o del texto cifrado generados, o bien puede dar lugar al descifrado incorrecto de un texto cifrado existente.

Ejemplo 1: el siguiente código se salta la llamada a EVP_DecryptUpdate, lo que producirá un error al descifrar el texto cifrado.


...
EVP_DecryptInit_ex(&ctx, EVP_aes_256_gcm(), NULL, key, iv);
...
if(!EVP_DecryptFinal_ex(&ctx, outBuf+outBytes, &tmpOutBytes))
  prtErrAndExit(1, "ERROR: EVP_DecryptFinal_ex did not work...\n");
...

References

[1] Standards Mapping - Common Weakness Enumeration CWE ID 325

[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450

[3] Standards Mapping - FIPS200 MP

[4] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection

[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-13 Cryptographic Protection (P1)

[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-13 Cryptographic Protection

[7] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3)

[8] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography

[9] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography

[10] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1

[11] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage

[12] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage

[13] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage

[14] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure

[15] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure

[16] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures

[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8

[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4

[26] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography

[27] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design

[29] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II

[30] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II

[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

desc.controlflow.cpp.weak_encryption_missing_required_step

Abstract

El código se salta la llamada a un paso necesario durante el proceso de generación de clave simétrica, cifrado o descifrado.

Explanation

La generación de claves simétricas y el cifrado y descifrado de secretos implica varios pasos y saltarse un paso necesario puede comprometer la seguridad de las claves simétricas o del texto cifrado generados, o bien puede dar lugar al descifrado incorrecto de un texto cifrado existente.

Ejemplo 1: el siguiente código se salta el paso de inicialización de KeyGenerator, lo que posiblemente producirá el uso de una clave de un tamaño menor que el recomendado:


...
final String CIPHER_INPUT = "123456ABCDEFG";
KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");

SecretKey secretKey = keyGenerator.generateKey();
byte[] byteKey = secretKey.getEncoded();
....

References

[1] JavaDoc for KeyGenerator Sun Microsystems

[2] Standards Mapping - Common Weakness Enumeration CWE ID 325

[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450

[4] Standards Mapping - FIPS200 MP

[5] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection

[6] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-13 Cryptographic Protection (P1)

[7] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-13 Cryptographic Protection

[8] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3)

[9] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography

[10] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography

[11] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1

[12] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage

[13] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage

[14] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage

[15] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure

[16] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure

[17] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures

[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.8

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.3, Requirement 6.5.8

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.3

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 6.2.4

[27] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design

[29] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design

[30] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II

[31] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II

desc.controlflow.java.weak_encryption_missing_required_step

Abstract

El código se salta la llamada a un paso necesario durante el proceso de generación de clave simétrica, cifrado o descifrado.

Explanation

La generación de claves simétricas y el cifrado y descifrado de secretos implica varios pasos y saltarse un paso necesario puede comprometer la seguridad de las claves simétricas o del texto cifrado generados, o bien puede dar lugar al descifrado incorrecto de un texto cifrado existente.

Ejemplo 1: El código siguiente omite la llamada a OpenSSL::Cipher#update, lo que da como resultado un error al descifrar el texto cifrado:


require 'openssl'
...
decipher = OpenSSL::Cipher::AES.new(128, :GCM)
decipher.decrypt
decipher.key = key
decipher.iv = iv

plain = decipher.final #missed update method
...