CVE-2017-9505 Missing authorization in Confluence Server

Medium 4.3 Published 15 Jun 2017 Updated 16 Oct 2024

Authenticated attackers can view comment content via notifications for pages they lack permission to access, exposing sensitive data.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-9505?

CVE-2017-9505 is a medium-severity missing authorization vulnerability in Atlassian Confluence Server, published on 15 Jun 2017. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Atlassian Confluence starting with 4.3.0 before 6.2.1 did not check if a user had permission to view a page when creating a workbox notification about new comments. An attacker who can login to Confluence could receive workbox notifications, which contain the content of comments, for comments added to a page after they started watching it even if they do not have permission to view the page itself.

Weakness: CWE-276

Which versions are affected by CVE-2017-9505?

It affects 1 product.

Products include Atlassian Confluence.

How do I fix CVE-2017-9505?

No fix has been published for CVE-2017-9505 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2017-9505 being exploited?

There is no known exploitation of CVE-2017-9505 in the wild and no public exploit code.

Sources

Also known as GHSA-rc74-f3xq-gqpx.