[SENTRY-900] User could access sentry metric info by curl without authorization

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.6.0
• Fix Version/s: 1.7.0
• Component/s: Sentry

Environment

centos 6.5

• Assignee: Dapeng Sun
• Reporter: Shishaodong
• Created: 24/Sep/15 05:04
• Updated: 25/Sep/15 07:16
• Resolved: 25/Sep/15 07:15

Description

1.Configure /etc/krb5.conf

[logging]
default = FILE:/var/log/krb5libs.log
kdc = FILE:/var/log/krb5kdc.log
admin_server = FILE:/var/log/kadmind.log
[libdefaults]
default_realm = NOVALOCAL
dns_lookup_realm = false
dns_lookup_kdc = false
ticket_lifetime = 24h
forwardable = true
udp_preference_limit = 1000000
allow_weak_crypto = true
default_tkt_enctypes = des-cbc-md5 des-cbc-crc des3-cbc-sha1
default_tgs_enctypes = des-cbc-md5 des-cbc-crc des3-cbc-sha1
permitted_enctypes = des-cbc-md5 des-cbc-crc des3-cbc-sha1
[realms]
NOVALOCAL = {
kdc = server-XXXXX.novalocal
admin_server = server-XXXXX.novalocal
}
[domain_realm]
.novalocal = NOVALOCAL
novalocal = NOVALOCAL

Copy /etc/krb5.conf on KDC to all other cluster nodes

2.Configure /var/kerberos/krb5kdc/kdc.conf

[kdcdefaults]
kdc_ports = 88
kdc_tcp_ports = 88
[realms]
NOVALOCAL = {
acl_file = /var/kerberos/krb5kdc/kadm5.acl
dict_file = /usr/share/dict/words
admin_keytab = /var/kerberos/krb5kdc/kadm5.keytab
master_key_type = des3-hmac-sha1
supported_enctypes = arcfour-hmac:normal des3-hmac-sha1:normal des-cbc-crc:normal des:normal des:v4 des:norealm des:onlyrealm des:afs3
}

3.Specify the KDC encryption type
des-cbc-md5

4.Generate sentry.service.we.authentication.kerberos.keytab

kadmin -w 123456 -p kadmin/admin -q 'xst -k /opt/HTTP.keytab HTTP/server-2406.novalocal@NOVALOCAL'

5.Sentry Service Advanced Configuration Snippet (Safety Valve) for sentry-site.xml
<property>
<name>sentry.service.web.enable</name>
<value>true</value>
</property>
<property>
<name>sentry.service.web.port</name>
<value>51000</value>
</property>
<property>
<name>sentry.service.web.authentication.type</name>
<value>KERBEROS</value>
</property>
<property>
<name>sentry.service.web.authentication.kerberos.principal</name>
<value>HTTP/server-2406.novalocal@NOVALOCAL</value>
</property>
<property>
<name>sentry.service.web.authentication.kerberos.keytab</name>
<value>/opt/HTTP.keytab</value>
</property>
<property>
<name>sentry.service.web.authentication.allow.connect.users</name>
<value>dong</value>
</property>