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Port 110 Details


known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
110 udp pop-or-not POP3 server traffic (should be TCP only?)

Final Fantasy XI also uses this port.
SG
110 tcp POP3 POP3 (Post Office Protocol - Version 3)

Security Concerns: Re-usable cleartext password, no auditing of connections & attempts thus subject to grinding. Some POP3 server versions have had buffer overflow problems. CERT Advisories: CA-97.09

ADM, ProMail trojans also use port 110 (TCP).

Integer overflow in inetcomm.dll in Microsoft Outlook Express 5.5 SP2, 6, and 6 SP1; Windows Live Mail on Windows XP SP2 and SP3, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7; and Windows Mail on Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows remote e-mail servers and man-in-the-middle attackers to execute arbitrary code via a crafted (1) POP3 or (2) IMAP response, as demonstrated by a certain +OK response on TCP port 110, aka "Outlook Express and Windows Mail Integer Overflow Vulnerability."
References: [CVE-2010-0816] [BID-40052]

Integer overflow in eXtremail 2.1.1 and earlier allows remote attackers to cause a denial of service, and possibly execute arbitrary code, via a long USER command containing "%s" sequences to the pop3 port (110/tcp), which are expanded to "%%s" before being used in the memmove function, possibly due to an incomplete fix for [CVE-2001-1078].
References: [CVE-2007-5467] [BID-26074] [SECUNIA-27220]

The POP3 service in YahooPOPs (aka YPOPs!) 1.6 allows a remote denial of service (reboot) via a long string to TCP port 110, a related issue to CVE-2004-1558.
References: [CVE-2024-24736]
SG
110 tcp Post Office Protocol 3 (POP3) (official) Wikipedia
110 tcp trojan ADM worm Trojans
110 tcp,udp pop-3 PostOffice V.3 SANS
110 tcp ProMailtrojan [trojan] ProMail trojan SANS
110 tcp,udp applications POP3 Portforward
110 tcp,udp pop3 PostOffice V.3 Nmap
110 tcp threat Bancos Bekkoame
110 tcp threat Civcat Bekkoame
110 tcp,udp pop3 Post Office Protocol - Version 3 IANA
11 records found

Related ports: 25  443  25  109  143  587  993  995  

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