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pedantic fixes

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This commit is contained in:
Tim W 2020-06-30 13:49:22 +08:00
parent 92e4be2ded
commit 86c02d4b28
2 changed files with 10 additions and 7 deletions
java/meterpreter/meterpreter/src/main/java/com/metasploit/meterpreter
Transport.java
core
core_negotiate_tlv_encryption.java

2
java/meterpreter/meterpreter/src/main/java/com/metasploit/meterpreter/Transport.java

@ -162,7 +162,7 @@ public abstract class Transport {
if (this.aesKey != null) {
try
{
if (this.aesEnabled && this.aesKey != null) {
if (this.aesEnabled) {
encType = (this.aesKey.length == 32 ? ENC_AES256 : ENC_AES128);
data = aesEncrypt(data);
}

15
java/meterpreter/meterpreter/src/main/java/com/metasploit/meterpreter/core/core_negotiate_tlv_encryption.java

@ -1,18 +1,15 @@
package com.metasploit.meterpreter.core;
import javax.xml.bind.DatatypeConverter;
import java.security.KeyFactory;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.spec.X509EncodedKeySpec;
import java.lang.String;
import javax.crypto.Cipher;
import com.metasploit.meterpreter.Transport;
import com.metasploit.meterpreter.Meterpreter;
import com.metasploit.meterpreter.TLVPacket;
import com.metasploit.meterpreter.TLVType;
import com.metasploit.meterpreter.Utils;
import com.metasploit.meterpreter.command.Command;
public class core_negotiate_tlv_encryption implements Command {
@ -21,10 +18,16 @@ public class core_negotiate_tlv_encryption implements Command {
public int execute(Meterpreter meterpreter, TLVPacket request, TLVPacket response) throws Exception {
byte[] der = request.getRawValue(TLVType.TLV_TYPE_RSA_PUB_KEY);
int encType = (Cipher.getMaxAllowedKeyLength("AES") >= 256 ? Transport.ENC_AES256 : Transport.ENC_AES128);
byte[] aesKey = new byte[encType == Transport.ENC_AES256 ? 32 : 16];
int encType;
byte[] aesKey;
if (Cipher.getMaxAllowedKeyLength("AES") < 256) {
encType = Transport.ENC_AES128;
aesKey = new byte[16];
} else {
encType = Transport.ENC_AES256;
aesKey = new byte[32];
}
sr.nextBytes(aesKey);
try
{
PublicKey pubKey = getPublicKey(der);