CVE-2018-1305 Apache Tomcat information exposure vulnerability
Attackers can access unauthorized resources because security constraints were not applied before Servlets loaded, exposing data to unprivileged users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-1305?
CVE-2018-1305 is a medium-severity missing authorization vulnerability in Apache Tomcat, published on 23 Feb 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Security constraints defined by annotations of Servlets in Apache Tomcat 9.0.0.M1 to 9.0.4, 8.5.0 to 8.5.27, 8.0.0.RC1 to 8.0.49 and 7.0.0 to 7.0.84 were only applied once a Servlet had been loaded. Because security constraints defined in this way apply to the URL pattern and any URLs below that point, it was possible - depending on the order Servlets were loaded - for some security constraints not to be applied. This could have exposed resources to users who were not authorised to access them.
Which versions are affected by CVE-2018-1305?
6 open source packages ship an affected version, including org.apache.tomcat.embed:tomcat-embed-core. It affects 6 products.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.tomcat.embed:tomcat-embed-core Maven | From 7.0.0 | 7.0.85 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 7.0.0 | 7.0.85 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 8.5.0 | 8.5.28 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 8.5.0 | 8.5.28 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 9.0.0M1 | 9.0.5 |
org.apache.tomcat.embed:tomcat-embed-core Maven | From 9.0.0M1 | 9.0.5 |
Products include Apache Tomcat, Canonical Ubuntu Linux, Debian Debian Linux, Oracle Fusion Middleware, Oracle Managed File Transfer, Oracle Micros Relate Crm Software.
How do I fix CVE-2018-1305?
Upgrade org.apache.tomcat.embed:tomcat-embed-core to a fixed version for your release line: 7.0.85, 8.5.28 or 9.0.5.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2018-1305 being exploited?
There is no known exploitation of CVE-2018-1305 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Apache Tomcat
Sources
Also known as GHSA-jx6h-3fjx-cgv5, UBUNTU-CVE-2018-1305.