Can't login in Confluence

[Prikhodko Vladislav]

Hi, i can't login in Confluence, i have an error message like this

com.atlassian.crowd.exception.runtime.OperationFailedException
    at com.atlassian.crowd.embedded.core.CrowdServiceImpl.convertOperationFailedException(CrowdServiceImpl.java:676)

caused by: java.net.UnknownHostException: jira.'hostname': No address associated with hostname
    at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)

This error can be fixed by confluence service restarting and it works half of the day, but it broke again and again, unfortunately. Confluence version is 7.2.1

[Alexis Robert · Accepted solution]

Hi @Prikhodko Vladislav , 

there is currently a Security Advisory for Confluence, where impacted instances are targeted and taken over. 

What you're describing could be the result of an attacker exploiting this vulnerability and using your Confluence server for malicious purposes.

You should talk urgently with your system administrator and have him investigate.

You should upgrade Confluence as soon as possible and read the full advisory : https://confluence.atlassian.com/doc/confluence-security-advisory-2021-08-25-1077906215.html

Let me know if this helps, 

--Alexis

[Prikhodko Vladislav]

Hi, Alexis

Thanks for your reply, i'm the system administrator) I will try to update confluence ASAP, hope these solution can help to resolve this issue