The Broadband Guide
search advanced
 forgot password?

Port 1433 Details

known port assignments and vulnerabilities
threat/application/port search:
Port(s) Protocol Service Details Source
1433 tcp,udp ms-sql-s Microsoft SQL Server.

Vulnerabilities: Check CERT advisories CA-2002-22 - multiple vulnerabilities, CA-2003-04 MS SQL Server Worm. The Gaobot family of worms also exploit this port.

See also: Microsoft Security Bulletin [MS02-061].

Digispid.B.Worm (05.21.2002) - worm that spreads to computers running MS SQL server and have blank SQL admin password. Uses port 1433/tcp.
W32.Kelvir.R (04.12.2005) - worm that spreads through MSN messenger and drops a variant of W32.Spybot.Worm. It spreads using several known MS vulnerabilities, including MS security Bulletin [MS02-061] Microsoft SQL Server 2000 or MSDE 2000 audit using port 1434/udp.

Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows remote attackers to execute arbitrary code via a long request to TCP port 1433, a.k.a. the "Hello" overflow.
References: [CVE-2002-1123], [BID-5411]

The database server in Siemens SIMATIC WinCC before 7.3, as used in PCS7 and other products, allows remote authenticated users to gain privileges via a request to TCP port 1433.
References: [CVE-2014-4684]
1433 tcp Microsoft SQL Server database management system Server (official) Wikipedia
1433 tcp trojan Voyager Alpha Force Trojans
1433 tcp,udp ms-sql-s Microsoft-SQL-Server IANA
80,4010,4011,1433 tcp applications Video Insight IP Server Portforward
80,1433,4000,11111 tcp applications Video Insight Server Portforward
1433 tcp,udp threat W32.Spybot Bekkoame
7 records found
jump to:
previous next

Related ports: 1030  1434  

« back to SG Ports

External Resources
SANS Internet Storm Center: port 1433

Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol. TCP is the most commonly used protocol on the Internet and any TCP/IP network. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol, a communications protocol for the Internet network, transport, and session layers. Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) and makes possible the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming, where dropping some packets is preferable to waiting for delayed data.

Please use the "Add Comment" button below to provide additional information or comments about port 1433.
  Post your review/comments
Print this document top
News Glossary of Terms FAQs Polls Cool Links SpeedGuide Teams SG Premium Services SG Gear Store
Registry Tweaks Broadband Tools Downloads/Patches Broadband Hardware SG Ports Database Security Default Passwords User Stories
Broadband Routers Wireless Firewalls / VPNs Software Hardware User Reviews
Broadband Security Editorials General User Articles Quick Reference
Broadband Forums General Discussions
Advertising Awards Link to us Server Statistics Helping SG About