[jboss-jira] [JBoss JIRA] (WFLY-5787) AdvancedLdapLoginModule does not handle loops in referrals

[Ondrej Lukas (JIRA)]

Ondrej Lukas created WFLY-5787:
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             Summary: AdvancedLdapLoginModule does not handle loops in referrals
                 Key: WFLY-5787
                 URL: https://issues.jboss.org/browse/WFLY-5787
             Project: WildFly
          Issue Type: Bug
          Components: Security
            Reporter: Ondrej Lukas
            Assignee: Darran Lofthouse
            Priority: Critical


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 EAP server is configured to use AdvancedLdapLoginModule which uses referrals and LDAP servers contain loop then it leads to infinite cycle. It can results to java.lang.OutOfMemoryError on EAP server.

We hit this issue during certification of 3rd Party LDAP servers. This issue is not regression to EAP 6.x.

[1] http://tools.ietf.org/html/rfc4511#section-4.1.10



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