CVE-2019-11496 Missing authorization in n/a
Attackers can access the default bucket without authentication if its properties are edited, allowing unauthorized data read and write operations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-11496?
CVE-2019-11496 is a critical missing authorization vulnerability in Couchbase Couchbase Server, published on 10 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In versions of Couchbase Server prior to 5.0, the bucket named "default" was a special bucket that allowed read and write access without authentication. As part of 5.0, the behavior of all buckets including "default" were changed to only allow access by authenticated users with sufficient authorization. However, users were allowed unauthenticated and unauthorized access to the "default" bucket if the properties of this bucket were edited. This has been fixed in versions 5.1.0 and 5.5.0.
Weakness: CWE-306
Which versions are affected by CVE-2019-11496?
It affects 1 product.
Products include Couchbase Couchbase Server.
How do I fix CVE-2019-11496?
No fix has been published for CVE-2019-11496 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-2019-11496 being exploited?
There is no known exploitation of CVE-2019-11496 in the wild and no public exploit code.
Other vulnerabilities in Couchbase Couchbase Server
Sources
Also known as GHSA-44rm-2q9r-5gjr.