CVE-2021-45457 Overly broad CORS configuration

High 7.5 Published Updated

Attackers can exploit overly broad CORS settings to send credentialed cross-origin requests, potentially bypassing security controls and accessing sensitive data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2021-45457?

CVE-2021-45457 is a high-severity vulnerability in Apache Kylin, published on 6 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Apache Kylin, Cross-origin requests with credentials are allowed to be sent from any origin. This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions; Apache Kylin 4 version 4.0.0 and prior versions.

Weakness: CWE-863

Which versions are affected by CVE-2021-45457?

4 open source packages ship an affected version, including org.apache.kylin:kylin. It affects 1 product.

PackageAffectedFixed in
org.apache.kylin:kylin MavenAll versions3.1.3
org.apache.kylin:kylin MavenAll versions3.1.3
org.apache.kylin:kylin MavenFrom 4.0.04.0.1
org.apache.kylin:kylin MavenFrom 4.0.04.0.1

Products include Apache Kylin.

How do I fix CVE-2021-45457?

Upgrade org.apache.kylin:kylin to a fixed version for your release line: 3.1.3 or 4.0.1.

Is CVE-2021-45457 being exploited?

There is no known exploitation of CVE-2021-45457 in the wild and no public exploit code.

Sources

Also known as GHSA-mgpf-hhgf-cxg4.

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