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Port 636 Details


known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
636 tcp ldaps LDAPS - Lightweight Directory Access Protocol over TLS/SSL. See also LDAP port 389/tcp.

VMWare, Siemens Openstage and Gigaset phones, etc.

Novell eDirectory and Netware are vulnerable to a denial of service, caused by the improper allocation of memory by the LDAP_SSL daemon. A remote attacker could exploit this vulnerability to cause a system-wide denial of service (over/on/using) port 636 TCP.
References: [XFDB-67468], [EDB-17298]

Cyclops Blink Botnet uses these ports. The malware has targeted governments, WatchGuard firewalls, ASUS routers, etc., it is active as of March 2022, and it is believed to be operated by the Sandworm threat group linked to Russian intelligence. Cyclops Blink botnet malware uses the following TCP ports: 636, 989, 990, 992, 994, 995, 3269, 8443
SG
636 tcp,udp Lightweight Directory Access Protocol over TLS/SSL (LDAPS) (official) Wikipedia
636 tcp,udp ldaps ldap protocol over TLS SSL (was sldap) SANS
636 tcp ldapssl LDAP over SSL Nmap
636 tcp,udp ldaps ldap protocol over TLS/SSL (was sldap) IANA
5 records found

Related ports: 389  989  992  994  995  1002  3268  3269  8443  29831  

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