CVE-2021-20250 JBoss EJB Client information disclosure vulnerability
Attackers can access privileged JBoss EJB client actions to disclose sensitive server information, affecting WildFly deployments.
- 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-2021-20250?
CVE-2021-20250 is a medium-severity vulnerability in wildfly, published on 13 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in wildfly. The JBoss EJB client has publicly accessible privileged actions which may lead to information disclosure on the server it is deployed on. The highest threat from this vulnerability is to data confidentiality.
Weakness: CWE-200
Which versions are affected by CVE-2021-20250?
2 open source packages ship an affected version, including org.jboss:jboss-ejb-client. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
org.jboss:jboss-ejb-client Maven | All versions | 4.0.39 |
org.jboss:jboss-ejb-client Maven | All versions | 4.0.39 |
Products include Redhat Jboss-Ejb-Client, Redhat Jboss Enterprise Application Platform Expansion Pack.
How do I fix CVE-2021-20250?
Upgrade org.jboss:jboss-ejb-client to 4.0.39 or later.
Is CVE-2021-20250 being exploited?
There is no known exploitation of CVE-2021-20250 in the wild and no public exploit code.
Sources
Also known as GHSA-2259-h742-5vr4.