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https://issues.apache.org/jira/browse/AMQ-5160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13982161#comment-13982161
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Surf commented on AMQ-5160:
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Can someone help me in this ?
It's big security flaw.
> Wildcard subscriptions bypass Authentication / Authorization
> ------------------------------------------------------------
>
> Key: AMQ-5160
> URL: https://issues.apache.org/jira/browse/AMQ-5160
> Project: ActiveMQ
> Issue Type: Bug
> Components: MQTT
> Affects Versions: 5.9.1
> Reporter: Surf
> Priority: Critical
> Labels: authentication, authorization, mqtt, security
> Attachments: activemq.xml, groups.properties, login.config,
> users.properties
>
>
> I am using MQTT on AMQ 5.9.1
> After latest MQTT hardening from [~dhirajsb] , there is an issue of MQTT
> retained messages.
> Simple case:
> Set Authentication / Authorization for two different TOPICS.
> Send retained message to one topic.
> Try to subscribe "#" with other second user.
> It will show retained messages published by TOPIC 1.
> here i have attached test configurations.
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