CVE-2018-8014 The defaults settings for the CORS filter provided in Apache Tomcat are insecure and enable 'supportsCredentials' for all origins
Insecure default CORS settings in Apache Tomcat allow credentials from all origins, potentially bypassing security controls if not explicitly configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-8014?
CVE-2018-8014 is a critical vulnerability in Apache Tomcat, published on 16 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The defaults settings for the CORS filter provided in Apache Tomcat 9.0.0.M1 to 9.0.8, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, 7.0.41 to 7.0.88 are insecure and enable 'supportsCredentials' for all origins. It is expected that users of the CORS filter will have configured it appropriately for their environment rather than using it in the default configuration. Therefore, it is expected that most users will not be impacted by this issue.
Weakness: CWE-1188
Which versions are affected by CVE-2018-8014?
8 open source packages ship an affected version, including org.apache.tomcat.embed:tomcat-embed-core. It affects 8 products.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.tomcat.embed:tomcat-embed-core Maven | From 7.0.41 | 7.0.88 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 7.0.41 | 7.0.88 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 8.0.0RC1 | 8.0.53 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 8.0.0RC1 | 8.0.53 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 8.5.0 | 8.5.32 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 8.5.0 | 8.5.32 |
2 more packages
org.apache.tomcat.embed:tomcat-embed-core Maven | From 9.0.0.M1 | 9.0.9 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 9.0.0.M1 | 9.0.9 |
Products include Apache Tomcat, Canonical Ubuntu Linux, Debian Debian Linux, Netapp Oncommand Insight, Netapp Oncommand Unified Manager, Netapp Oncommand Workflow Automation and 2 more.
How do I fix CVE-2018-8014?
Upgrade org.apache.tomcat.embed:tomcat-embed-core to a fixed version for your release line: 7.0.88, 8.0.53, 8.5.32 or 9.0.9.
Is CVE-2018-8014 being exploited?
There is no known exploitation of CVE-2018-8014 in the wild and no public exploit code.
Other vulnerabilities in Apache Tomcat
Sources
Also known as CLSA-2026-1777884162, GHSA-r4x2-3cq5-hqvp, UBUNTU-CVE-2018-8014.