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[SECURITY] CVE-2019-16303 - JHipster Vulnerability Fix - Use CSPRNG in RandomUtil #1

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[SECURITY] CVE-2019-16303 - JHipster Vulnerability Fix - Use CSPRNG in RandomUtil #1

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17 changes: 14 additions & 3 deletions src/main/java/agatakasia/zpp/service/util/RandomUtil.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,23 +2,34 @@

import org.apache.commons.lang3.RandomStringUtils;

import java.security.SecureRandom;

/**
* Utility class for generating random Strings.
*/
public final class RandomUtil {
private static final SecureRandom SECURE_RANDOM = new SecureRandom();

private static final int DEF_COUNT = 20;

static {
SECURE_RANDOM.nextBytes(new byte[64]);
}

private RandomUtil() {
}

private static String generateRandomAlphanumericString() {
return RandomStringUtils.random(DEF_COUNT, 0, 0, true, true, null, SECURE_RANDOM);
}

/**
* Generate a password.
*
* @return the generated password
*/
public static String generatePassword() {
return RandomStringUtils.randomAlphanumeric(DEF_COUNT);
return generateRandomAlphanumericString();
}

/**
Expand All @@ -27,7 +38,7 @@ public static String generatePassword() {
* @return the generated activation key
*/
public static String generateActivationKey() {
return RandomStringUtils.randomNumeric(DEF_COUNT);
return generateRandomAlphanumericString();
}

/**
Expand All @@ -36,6 +47,6 @@ public static String generateActivationKey() {
* @return the generated reset key
*/
public static String generateResetKey() {
return RandomStringUtils.randomNumeric(DEF_COUNT);
return generateRandomAlphanumericString();
}
}