If an AMQP port is configured with any of these Authentication Providers, the Broker may be vulnerable. XOAUTH2 SASL mechanism is supported by Authentication Providers of type OAuth2. Authentication Providers of following types supports PLAIN SASL mechanism: Plain, PlainPasswordFile, SimpleLDAP, Base64MD5PasswordFile, MD5, SCRAM-SHA-256, SCRAM-SHA-1. The client chooses the most appropriate SASL mechanism for authentication. Each Authentication Provider can support several SASL mechanisms which are offered to the connecting clients as part of SASL negotiation process. An authentication of incoming AMQP connections in Apache Qpid Broker-J is performed by special entities called "Authentication Providers".
AMQP 1.0 and HTTP connections are not affected. File Size : 1.7 Mb An alternative to the Windows registry viewer and explorer that brings to the table additional functionality to make working with the registry easier. The vulnerability allows unauthenticated attacker to crash the broker instance.
A Denial of Service vulnerability was found in Apache Qpid Broker-J 7.0.0 in functionality for authentication of connections for AMQP protocols 0-8, 0-9, 0-91 and 0-10 when PLAIN or XOAUTH2 SASL mechanism is used.
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