CVE-2020-29158 Missing authorization in n/a

Medium 4.3 Published Updated

Agents with customer permissions can bypass access controls to view internal articles in the ticket detail view.

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-2020-29158?

CVE-2020-29158 is a medium-severity missing authorization vulnerability in Zammad Zammad, published on 28 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.

Weakness: CWE-862

Which versions are affected by CVE-2020-29158?

It affects 1 product.

Products include Zammad Zammad.

How do I fix CVE-2020-29158?

No fix has been published for CVE-2020-29158 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-2020-29158 being exploited?

There is no known exploitation of CVE-2020-29158 in the wild and no public exploit code.

All Zammad Zammad vulnerabilities

Sources

Also known as GHSA-hh5m-6r25-ccqm.

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