CVE-2020-13920

MEDIUM
5.9
CVSS Score
Published: September 10, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 02:53 AM UTC
4 products affected across 3 vendorsDebian LinuxCommunications Diameter Signaling RouterActiveMQ

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Severity
MEDIUM5.9
Exploit prediction
EPSS 5%

Description

Apache ActiveMQ uses LocateRegistry.createRegistry() to create the JMX RMI registry and binds the server to the "jmxrmi" entry. It is possible to connect to the registry without authentication and call the rebind method to rebind jmxrmi to something else. If an attacker creates another server to proxy the original, and bound that, he effectively becomes a man in the middle and is able to intercept the credentials when an user connects. Upgrade to Apache ActiveMQ 5.15.12.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.15.12
Affected range stops below 5.15.12, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

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