Welcome to TP-LINK Tech Support Forum
+ Reply to Thread
Results 1 to 7 of 7
  1. #1

    TL-SG1016DE TCP port 0 open

    Model :

    Hardware Version :

    Firmware Version :

    ISP : [/COLOR]

    I just audited my network and the following error came up:

    TCP port 0 is open on the remote host. This is highly suspicious as this TCP port is reserved and should not be used. This might be a backdoor (REx).

    So why is port 0 open on the switch? How can I close it?

    Device Description TL-SG1016DE
    MAC Address 60:e3:xxxxxxxx
    IP Address 10.0.0.182
    Subnet Mask 255.255.0.0
    Default Gateway 10.0.0.2
    Firmware Version 1.0.1 Build 20131023 Rel.33236
    Hardware Version TL-SG1016DE 1.0

  2. #2
    Quote Originally Posted by steef82 View Post
    Model :

    Hardware Version :

    Firmware Version :

    ISP : [/COLOR]

    I just audited my network and the following error came up:

    TCP port 0 is open on the remote host. This is highly suspicious as this TCP port is reserved and should not be used. This might be a backdoor (REx).

    So why is port 0 open on the switch? How can I close it?

    Device Description TL-SG1016DE
    MAC Address 60:e3:xxxxxxxx
    IP Address 10.0.0.182
    Subnet Mask 255.255.0.0
    Default Gateway 10.0.0.2
    Firmware Version 1.0.1 Build 20131023 Rel.33236
    Hardware Version TL-SG1016DE 1.0
    How did you find the TCP port 0 be opened?

  3. #3
    I'm using OpenVAS - Open Vulnerability Assessment System:

    http://www.openvas.org/

  4. #4
    NMAP also detects port 0 open:

    sudo nmap 10.0.0.182 -p 0

    Starting Nmap 7.01 ( https://nmap.org ) at 2017-11-04 09:54 CET
    Nmap scan report for TL-SG1016DE.*****.net (10.0.0.182)
    Host is up (0.0062s latency).
    PORT STATE SERVICE
    0/tcp open unknown
    MAC Address: 60:E3:27:26:00:CB (Tp-link Technologies)


    Nmap done: 1 IP address (1 host up) scanned in 0.56 seconds

  5. #5
    Quote Originally Posted by steef82 View Post
    NMAP also detects port 0 open:

    sudo nmap 10.0.0.182 -p 0

    Starting Nmap 7.01 ( https://nmap.org ) at 2017-11-04 09:54 CET
    Nmap scan report for TL-SG1016DE.*****.net (10.0.0.182)
    Host is up (0.0062s latency).
    PORT STATE SERVICE
    0/tcp open unknown
    MAC Address: 60:E3:27:26:00:CB (Tp-link Technologies)


    Nmap done: 1 IP address (1 host up) scanned in 0.56 seconds
    I used TL-SG1016DE V3.0 did the test, The result is filtered(use Nmap).
    Name:  nmap.PNG
Views: 0
Size:  5.0 KB

  6. #6
    I'm using v1.0. So it seems it is fixed in newer models.

    Can I expect a firmware update which resolves this issue?

  7. #7
    Quote Originally Posted by steef82 View Post
    I'm using v1.0. So it seems it is fixed in newer models.

    Can I expect a firmware update which resolves this issue?
    I do not know, In my opinion, you can contact with tp-link. But according to my experience,it is difficult.after all, this is V1.0, the old version.
    If this is not critical issue,they will not release firmware.


 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Copyright 1996-2017 TP-LINK Technologies Co., Ltd. All rights reserved.