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Accept players connecting via DNS exploit

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This commit is contained in:
mkwcat
2023-12-19 11:25:34 -05:00
parent e130fdc60f
commit 357a3d5b14
10 changed files with 227 additions and 108 deletions
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32
nas/https.go
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@@ -315,12 +315,11 @@ func startHTTPSProxy(address string, nasAddr string) {
// Read bytes from the HTTP server and forward them through the TLS connection
go func() {
buf := make([]byte, 0x1000)
recvBuf := make([]byte, 0x100)
seq := uint64(1)
index := 0
for {
n, err := newConn.Read(buf[index:])
n, err := newConn.Read(recvBuf)
if err != nil {
if errors.Is(err, io.EOF) || strings.Contains(err.Error(), "use of closed network connection") {
return
@@ -330,9 +329,9 @@ func startHTTPSProxy(address string, nasAddr string) {
return
}
// fmt.Printf("Sent:\n% X ", buf[index:index+n])
// fmt.Printf("Sent:\n% X ", recvBuf[:n])
var record []byte
record, seq = encryptTLS(macFn, cipher, buf[index:index+n], seq, []byte{0x17, 0x03, 0x01, byte(n >> 8), byte(n)})
record, seq = encryptTLS(macFn, cipher, recvBuf[:n], seq, []byte{0x17, 0x03, 0x01, byte(n >> 8), byte(n)})
_, err = conn.Write(record)
if err != nil {
@@ -349,6 +348,11 @@ func startHTTPSProxy(address string, nasAddr string) {
for {
n, err := conn.Read(buf[index:])
if err != nil {
if errors.Is(err, io.EOF) || strings.Contains(err.Error(), "use of closed network connection") {
logging.Info(moduleName, "Connection closed by client after", aurora.BrightCyan(total), "bytes")
return
}
logging.Error(moduleName, "Failed to read from client:", err)
return
}
@@ -387,18 +391,20 @@ func startHTTPSProxy(address string, nasAddr string) {
// fmt.Printf("\nDecrypted content:\n% X \n", buf[5:5+recordLength])
if buf[0] != 0x17 {
if buf[0] == 0x15 && buf[5] == 0x01 && buf[6] == 0x00 {
if buf[0] == 0x15 || buf[5] == 0x01 || buf[6] == 0x00 {
logging.Info(moduleName, "Alert connection close by client after", aurora.BrightCyan(total), "bytes")
return
}
logging.Error(moduleName, "Non-application data received")
return
}
// Send the decrypted content to the HTTP server
_, err = newConn.Write(buf[5 : 5+recordLength-16])
if err != nil {
logging.Error(moduleName, "Failed to write to HTTP server:", err)
logging.Error(moduleName, "Non-application data received:", aurora.Cyan(fmt.Sprintf("% X ", buf[:5+recordLength])))
return
} else {
// Send the decrypted content to the HTTP server
_, err = newConn.Write(buf[5 : 5+recordLength-16])
if err != nil {
logging.Error(moduleName, "Failed to write to HTTP server:", err)
return
}
}
buf = buf[5+recordLength:]