Tuesday 19 May 2020

can't RDP to server authentication error due to CredSSP encryption oracle remediation

The server is using this update but the client is not

Update both hosts to latest

On client gpedit.msc -> computer conf -> admin templates -> system -> credential delegation

Set Encryption oracle remediation
to enabled
drop down to vulnerable

https://weblogs.asp.net/dixin/remote-desktop-connection-authentication-error-due-to-credssp-encryption-oracle-remediation

Tuesday 12 May 2020

cisco umbrella firewall rules

object-group network UmbrellaVAs
network-object host 10.53.0.71
network-object host 10.53.0.72


object-group network UmbrellaVA_Destination
network-object host 208.67.220.220
network-object host 208.67.222.222
network-object host 208.67.222.220
network-object host 208.67.220.222
network-object host 67.215.71.201
network-object host 146.112.255.155
network-object host 91.189.94.4
network-object host 91.189.89.199
network-object host 91.189.91.157
network-object host 91.189.89.198
network-object 67.215.92.0 255.255.255.0
network-object object ocsp.digicert.com
network-object object crl4.digicert.com
network-object object disthost.opendns.com
network-object object disthost.umbrella.com
network-object object s.tunnels.ironport.com

object-group service Umbrella_Ports tcp-udp
port-object eq domain
port-object eq 443
port-object eq www
port-object eq 123
port-object eq 22
port-object eq 25
port-object eq 5353
how is this even working?