CVE-2023-23613 Field-level security issue with .keyword fields in OpenSearch

Medium 5.7 Published Updated

Authenticated users can bypass field-level security restrictions to read restricted data via auto-generated keyword fields in OpenSearch.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2023-23613?

CVE-2023-23613 is a medium-severity vulnerability in opensearch-project security, published on 24 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

OpenSearch is an open source distributed and RESTful search engine. In affected versions there is an issue in the implementation of field-level security (FLS) and field masking where rules written to explicitly exclude fields are not correctly applied for certain queries that rely on their auto-generated .keyword fields. This issue is only present for authenticated users with read access to the indexes containing the restricted fields. This may expose data which may otherwise not be accessible to the user. OpenSearch 1.0.0-1.3.7 and 2.0.0-2.4.1 are affected. Users are advised to upgrade to OpenSearch 1.3.8 or 2.5.0. Users unable to upgrade may write explicit exclusion rules as a workaround. Policies authored in this way are not subject to this issue.

Weakness: CWE-200

Which versions are affected by CVE-2023-23613?

4 open source packages ship an affected version, including org.opensearch.plugin:opensearch-security. It affects 1 product.

PackageAffectedFixed in
org.opensearch.plugin:opensearch-security MavenAll versions1.3.8
org.opensearch.plugin:opensearch-security MavenAll versions1.3.8
org.opensearch.plugin:opensearch-security MavenFrom 2.0.02.5.0
org.opensearch.plugin:opensearch-security MavenFrom 2.0.02.5.0

Products include Amazon Opensearch.

How do I fix CVE-2023-23613?

Upgrade org.opensearch.plugin:opensearch-security to a fixed version for your release line: 1.3.8 or 2.5.0.

Is CVE-2023-23613 being exploited?

There is no known exploitation of CVE-2023-23613 in the wild and no public exploit code.

Sources

Also known as GHSA-v3cg-7r9h-r2g6, UBUNTU-CVE-2023-23613.

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