Is port 139 insecure?

Is port 139 insecure?

Port 139 is used for File and Printer Sharing but happens to be the single most dangerous Port on the Internet. This is so because it leaves the hard disk of a user exposed to hackers.

What is the protocol for port 139?

Side note: UDP port 139 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 139 makes possible the transmission of a datagram message from one computer to an application running in another computer.

Which ports are secure?

Port 22 is SSH (Secure Shell), port 80 is the standard port for HTTP (Hypertext Transfer Protocol) web traffic, and port 443 is HTTPS (Hypertext Transfer Protocol Secure)—the more secure web traffic protocol.

What port do hackers use?

TCP port 443 — HTTP (Hypertext Transport Protocol) and HTTPS (HTTP over SSL) TCP port 110 — POP3 (Post Office Protocol version 3) TCP and UDP port 135 — Windows RPC. TCP and UDP ports 137–139 — Windows NetBIOS over TCP/IP.

What is NetBIOS 139?

Port 139: SMB originally ran on top of NetBIOS using port 139. NetBIOS is an older transport layer that allows Windows computers to talk to each other on the same network. Port 445: Later versions of SMB (after Windows 2000) began to use port 445 on top of a TCP stack. Using TCP allows SMB to work over the internet.

What is the protocol for port 138?

Side note: UDP port 138 uses the Datagram Protocol, a communications protocol for the Internet network layer, transport layer, and session layer. This protocol when used over PORT 138 makes possible the transmission of a datagram message from one computer to an application running in another computer.

Is port 139 needed for SMB?

SMB has always been a network file sharing protocol. As such, SMB requires network ports on a computer or server to enable communication to other systems. SMB uses either IP port 139 or 445. NetBIOS is an older transport layer that allows Windows computers to talk to each other on the same network.

What does port 139 mean in Cisco Security agent?

Buffer overflow in a certain driver in Cisco Security Agent 4.5.1 before 4.5.1.672, 5.0 before 5.0.0.225, 5.1 before 5.1.0.106, and 5.2 before 5.2.0.238 on Windows allows remote attackers to execute arbitrary code via a crafted SMB packet in a TCP session on port (1) 139 or (2) 445. Server Message Block (SMB) also uses this port.

What is the port 139 vulnerability for w32.reidana?

W32.Reidana.A [ Symantec-2005-032515-4042-99] (2005.03.27) – worm that spreads using the MS DCOM RPC vulnerability (MS Security Bulletin [ MS03-026 ]) on port 139. The worm attempts to download and execute a remote file via FTP. Opens TCP port 4444.

What does port 139 mean in NetBIOS session service?

NETBIOS Session Service (TCP/UDP: 139) By default, when File and Print Sharing is enabled it binds to everything, including TCP/IP (The Internet Protocol), rather than just the local network, meaning your shared resources are available over the entire Internet for reading and deletion, unless configured properly.

Are there any security vulnerabilities that CVE has rejected?

CVE has REJECTED this vector; it is not a vulnerability because the information is already available through legitimate use, since authentication cannot proceed without specifying a scheme that is supported by both the client and the server.