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Port 42 Details
known port assignments and vulnerabilities
threat/application/port search:
| Port(s) |
Protocol |
Service |
Details |
Source |
| 42 |
tcp,udp |
WINS |
Port used by WINS (Windows Internet Naming Service). Worms can exploit a buffer overflow vulnerability within WINS using this port. See: MSKB 890710
The WINS service (wins.exe) on Microsoft Windows NT Server, Windows 2000 Server, and Windows Server 2003 allows remote attackers to write to arbitrary memory locations and possibly execute arbitrary code via a modified memory pointer in a WINS replication packet to TCP port 42, aka the "Association Context Vulnerability."
References: [CVE-2004-1080] [BID-11763] [OSVDB-12378] [SECUNIA-13328]
W32.Dasher.D [Symantec-2005-121915-1543-99] (2005.12.19) - a worm that exploits the following MS vulnerabilities: [MS05-051] (on port 53/tcp) and [MS04-045] (on port 42/tcp). Listens for remote commands on port 53/tcp. Connects to an FTP server on port 21211/tcp. Scans for systems vulnerable to the [MS05-051] exploit on port 1025/tcp.
Backdoor.Win32.Ncx.bt / Remote Stack Buffer Overflow - the malware listens on TCP port 42, sending a single HTTP GET request with a packet size of 10140 bytes, will trigger the buffer overflow overwriting both EIP and structured exception handler (SEH)
References: [MVID-2021-0026]
City of Heroes also uses this port (TCP).
Port was originally assigned to the obsolete ARPA Host name server protocol (pre-DNS). |
SG
|
| 42 |
tcp,udp |
|
nameserver, ARPA Host Name Server Protocol (official) |
Wikipedia
|
| 42 |
tcp,udp |
|
WINS (unofficial) |
Wikipedia
|
| 42 |
tcp |
threat |
W32.Dasher |
Bekkoame
|
| 42 |
tcp,udp |
name |
Host Name Server |
IANA
|
| 42 |
tcp,udp |
nameserver |
Host Name Server |
IANA
|
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6 records found
Related ports: 53 106 421 699 1025 21211
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