[jboss-jira] [JBoss JIRA] (WFLY-7946) Elytron ldap-realm does not handle loops in referrals

[Ondrej Lukas (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-7946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ondrej Lukas updated WFLY-7946:
-------------------------------
    Attachment: print-roles.war


> Elytron ldap-realm does not handle loops in referrals
> -----------------------------------------------------
>
>                 Key: WFLY-7946
>                 URL: https://issues.jboss.org/browse/WFLY-7946
>             Project: WildFly
>          Issue Type: Bug
>          Components: Security
>    Affects Versions: 11.0.0.Alpha1
>            Reporter: Ondrej Lukas
>            Assignee: Darran Lofthouse
>            Priority: Critical
>         Attachments: print-roles.war
>
>
> According to LDAP specification [1]: "Clients that follow referrals MUST ensure that they do not loop between servers. They MUST NOT repeatedly contact the same server for the same request with the same parameters.".
> When application server is configured to use ldap-realm with dir-context which uses referral-mode=follow or throw and LDAP servers contain loop then it leads to infinite cycle. It can results to java.lang.OutOfMemoryError on EAP server.
> [1] http://tools.ietf.org/html/rfc4511#section-4.1.10



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