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CVE 2008 3274 related fixes

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This commit is contained in:
Simo Sorce 2008-08-15 17:17:03 -04:00
parent 89ed5a0277
commit 8e7c98eb7f
2 changed files with 9 additions and 3 deletions
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4
ipa-server/ipa-install/share/default-aci.ldif
View File

@ -3,8 +3,8 @@
dn: $SUFFIX dn: $SUFFIX
changetype: modify changetype: modify
add: aci add: aci
aci: (targetattr != "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory")(version 3.0; acl "Enable Anonymous access"; allow (read, search, compare) userdn = "ldap:///anyone";) aci: (targetattr != "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory || krbMKey")(version 3.0; acl "Enable Anonymous access"; allow (read, search, compare) userdn = "ldap:///anyone";)
aci: (targetattr != "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory")(version 3.0; acl "Admin can manage any entry"; allow (all) userdn = "ldap:///uid=admin,cn=users,cn=accounts,$SUFFIX";) aci: (targetattr != "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory || krbMKey")(version 3.0; acl "Admin can manage any entry"; allow (all) userdn = "ldap:///uid=admin,cn=users,cn=accounts,$SUFFIX";)
aci: (targetattr = "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword")(version 3.0; acl "Self can write own password"; allow (write) userdn="ldap:///self";) aci: (targetattr = "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword")(version 3.0; acl "Self can write own password"; allow (write) userdn="ldap:///self";)
aci: (targetattr = "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory")(version 3.0; acl "Admins can write passwords"; allow (add,delete,write) groupdn="ldap:///cn=admins,cn=groups,cn=accounts,$SUFFIX";) aci: (targetattr = "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory")(version 3.0; acl "Admins can write passwords"; allow (add,delete,write) groupdn="ldap:///cn=admins,cn=groups,cn=accounts,$SUFFIX";)
aci: (targetattr = "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory")(version 3.0; acl "Password change service can read/write passwords"; allow (read, write) userdn="ldap:///krbprincipalname=kadmin/changepw@$REALM,cn=$REALM,cn=kerberos,$SUFFIX";) aci: (targetattr = "userPassword || krbPrincipalKey || sambaLMPassword || sambaNTPassword || passwordHistory")(version 3.0; acl "Password change service can read/write passwords"; allow (read, write) userdn="ldap:///krbprincipalname=kadmin/changepw@$REALM,cn=$REALM,cn=kerberos,$SUFFIX";)

8
ipa-server/ipaserver/krbinstance.py
View File

@ -339,6 +339,10 @@ class KrbInstance(service.Service):
def __add_pwd_extop_module(self): def __add_pwd_extop_module(self):
self.__ldap_mod("pwd-extop-conf.ldif") self.__ldap_mod("pwd-extop-conf.ldif")
KRBMKEY_DENY_ACI = """
(targetattr = "krbMKey")(version 3.0; acl "No external access"; deny (all) userdn != "ldap:///uid=kdc,cn=sysaccounts,cn=etc,$SUFFIX";)
"""
def __add_master_key(self): def __add_master_key(self):
#get the Master Key from the stash file #get the Master Key from the stash file
try: try:
@ -358,7 +362,9 @@ class KrbInstance(service.Service):
asn1key = pyasn1.codec.ber.encoder.encode(krbMKey) asn1key = pyasn1.codec.ber.encoder.encode(krbMKey)
dn = "cn="+self.realm+",cn=kerberos,"+self.suffix dn = "cn="+self.realm+",cn=kerberos,"+self.suffix
mod = [(ldap.MOD_ADD, 'krbMKey', str(asn1key))] #protect the master key by adding an appropriate deny rule along with the key
mod = [(ldap.MOD_ADD, 'aci', ipautil.template_str(KRBMKEY_DENY_ACI, self.sub_dict)),
(ldap.MOD_ADD, 'krbMKey', str(asn1key))]
try: try:
self.conn.modify_s(dn, mod) self.conn.modify_s(dn, mod)
except ldap.TYPE_OR_VALUE_EXISTS, e: except ldap.TYPE_OR_VALUE_EXISTS, e: