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Port 513 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 513 |
udp |
applications |
Multiple buffer overflows in the Syslog server in ManageEngine EventLog Analyzer 6.1 allow remote attackers to cause a denial of service (SysEvttCol.exe process crash) or possibly execute arbitrary code via a long Syslog PRI message header to UDP port 513 or 514.
References: [CVE-2010-4840] |
SG |
| 513 |
tcp |
trojans |
ADM worm, Grlogin
UTStarcom F1000 VOIP WIFI Phone s2.0 running VxWorks 5.5.1 with kernel WIND 2.6 does not allow users to disable access to (1) SNMP or (2) the rlogin port TCP 513, which allows remote attackers to exploit other vulnerabilities such as CVE-2005-3716, or execute arbitrary shell commands via rlogin, which does not require authentication.
References: [CVE-2005-3718] [SECUNIA-17629] [BID-15476] |
SG |
| 513 |
tcp |
|
Login (official) |
Wikipedia |
| 513 |
udp |
|
Who (official) |
Wikipedia |
| 513 |
tcp |
trojan |
ADM worm |
Trojans |
| 513 |
tcp |
login |
remote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed databases which identify "authentication domains" |
IANA |
| 513 |
udp |
who |
maintains data bases showing who's logged in to machines on a local net and the load average of the machine |
IANA |
| 513 |
tcp |
Grlogin |
[trojan] Grlogin |
SANS |
| 513 |
tcp |
login |
BSD rlogind(8) |
SANS |
| 513 |
udp |
who |
BSD rwhod(8) |
SANS |
| 513 |
tcp |
login |
BSD rlogind(8) |
Nmap |
| 513 |
udp |
who |
BSD rwhod(8) |
Nmap |
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12 records found
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jump to:
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Related ports: 514
« back to SG Ports
External Resources
SANS Internet Storm Center: port 513
tantalo.net port assignments: port 513
GRC: port 513
Notes:
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.
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