CVE-2019-11234 Auth bypass in n/a
Attackers can spoof authentication in FreeRADIUS using reflection techniques, bypassing security controls in the RADIUS server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-11234?
CVE-2019-11234 is a critical authentication bypass vulnerability in Canonical Ubuntu Linux, published on 21 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FreeRADIUS before 3.0.19 does not prevent use of reflection for authentication spoofing, aka a "Dragonblood" issue, a similar issue to CVE-2019-9497.
Weakness: CWE-287
Which versions are affected by CVE-2019-11234?
It affects 4 products.
Products include Canonical Ubuntu Linux, Fedoraproject Fedora, Freeradius Freeradius, Redhat Enterprise Linux.
How do I fix CVE-2019-11234?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-11234 being exploited?
There is no known exploitation of CVE-2019-11234 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2019-11234, DEBIAN-CVE-2019-11234, GHSA-vwq6-jpj7-xqvx, UBUNTU-CVE-2019-11234.