CVE-2019-3894 Auth bypass in wildfly
Attackers can exploit thread reuse in WildFly's Elytron subsystem to execute code with an incorrect security identity, leading to privilege escalation.
- 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-2019-3894?
CVE-2019-3894 is a medium-severity authentication bypass vulnerability in Redhat Jboss Enterprise Application Platform, published on 3 May 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
It was discovered that the ElytronManagedThread in Wildfly's Elytron subsystem in versions from 11 to 16 stores a SecurityIdentity to run the thread as. These threads do not necessarily terminate if the keep alive time has not expired. This could allow a shared thread to use the wrong security identity when executing.
Weakness: CWE-358
Which versions are affected by CVE-2019-3894?
It affects 2 products.
Products include Redhat Jboss Enterprise Application Platform, Redhat Wildfly.
How do I fix CVE-2019-3894?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-3894 being exploited?
There is no known exploitation of CVE-2019-3894 in the wild and no public exploit code.
Other vulnerabilities in Redhat Jboss Enterprise Application Platform
- CVE-2017-12149 Red Hat JBoss Application Server Remote Code Execution
- CVE-2010-1428 Red Hat JBoss Information Disclosure
- CVE-2010-0738 Red Hat JBoss Authentication Bypass
- CVE-2016-3690 Deserialization in n/a
- CVE-2017-7504 Deserialization in JBoss
All Redhat Jboss Enterprise Application Platform vulnerabilities
Sources
Also known as GHSA-7hpw-qq87-9462.