CVE-2020-1954: Apache CXF has the ability to integrate with JMX by registering an InstrumentationManager extension with the CXF bus. If the ‘createMBServerConnectorF...

Description

Apache CXF has the ability to integrate with JMX by registering an InstrumentationManager extension with the CXF bus. If the ‘createMBServerConnectorFactory‘ property of the default InstrumentationManagerImpl is not disabled, then it is vulnerable to a man-in-the-middle (MITM) style attack. An attacker on the same host can connect to the registry and rebind the entry to another server, thus acting as a proxy to the original. They are then able to gain access to all of the information that is sent and received over JMX.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

6.15%

92.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apache	Cxf	< 3.2.13
Apache	Cxf	>= 3.3.0, < 3.3.6
Oracle	Communications Diameter Signaling Router	>= 8.0.0, <= 8.2.2
Oracle	Communications Element Manager	>= 8.2.0, <= 8.2.2
Oracle	Communications Session Report Manager	>= 8.2.0, <= 8.2.2
Oracle	Enterprise Manager Base Platform	13.2.1.0
Oracle	Peoplesoft Enterprise Peopletools	8.56
Netapp	Oncommand Workflow Automation	All versions
Netapp	Snapmanager	All versions
Oracle	Communications Diameter Signaling Router Idih\	>= 8.0.0, <= 8.2.2
Oracle	Communications Session Route Manager	>= 8.2.0, <= 8.2.2

References

Timeline

Published: Apr 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1954?

Apache CXF has the ability to integrate with JMX by registering an InstrumentationManager extension with the CXF bus. If the ‘createMBServerConnectorFactory‘ property of the default InstrumentationManagerImpl is not disabled, then it is vulnerable to a man-in-the-middle (MITM) style attack. An attacker on the same host can connect to the registry and rebind the entry to another server, thus acting as a proxy to the original. They are then able to gain access to all of the information that is sent and received over JMX.

How severe is CVE-2020-1954?

CVE-2020-1954 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 6.15% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1954?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.