CVE-2023-30428: Apache Pulsar Broker: Incorrect Authorization Validation for Rest Producer
First published: Tue Jul 11 2023(Updated: )
Incorrect Authorization vulnerability in Apache Software Foundation Apache Pulsar Broker's Rest Producer allows authenticated user with a custom HTTP header to produce a message to any topic using the broker's admin role. This issue affects Apache Pulsar Brokers: from 2.9.0 through 2.9.5, from 2.10.0 before 2.10.4, 2.11.0. The vulnerability is exploitable when an attacker can connect directly to the Pulsar Broker. If an attacker is connecting through the Pulsar Proxy, there is no known way to exploit this authorization vulnerability. There are two known risks for affected users. First, an attacker could produce garbage messages to any topic in the cluster. Second, an attacker could produce messages to the topic level policies topic for other tenants and influence topic settings that could lead to exfiltration and/or deletion of messages for other tenants. 2.8 Pulsar Broker users and earlier are unaffected. 2.9 Pulsar Broker users should upgrade to one of the patched versions. 2.10 Pulsar Broker users should upgrade to at least 2.10.4. 2.11 Pulsar Broker users should upgrade to at least 2.11.1. 3.0 Pulsar Broker users are unaffected.
Credit: security@apache.org security@apache.org security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Pulsar | >=2.9.0<=2.9.5 | |
| Apache Pulsar | >=2.10.0<2.10.4 | |
| Apache Pulsar | =2.11.0 | |
| Apache Pulsar | =2.11.0-candidate_1 | |
| Apache Pulsar | =2.11.0-candidate_5 | |
| maven/org.apache.pulsar:pulsar-broker | =2.11.0 | 2.11.1 |
| maven/org.apache.pulsar:pulsar-broker | >=2.9.0<2.10.4 | 2.10.4 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-30428?
CVE-2023-30428 is a vulnerability in Apache Pulsar Broker where an authenticated user with a custom HTTP header can produce a message to any topic using the broker's admin role.
Which versions of Apache Pulsar Broker are affected by CVE-2023-30428?
Apache Pulsar Brokers from 2.9.0 through 2.9.5, and from 2.10.0 through 2.10.4 are affected by CVE-2023-30428.
What is the severity rating of CVE-2023-30428?
CVE-2023-30428 has a severity rating of 8.1 (high).
How can an authenticated user exploit CVE-2023-30428?
An authenticated user with a custom HTTP header can exploit CVE-2023-30428 to produce a message to any topic using the broker's admin role.
Is there a fix available for CVE-2023-30428?
Yes, a fix is available for CVE-2023-30428. Users should update to a version of Apache Pulsar Broker that is not affected by this vulnerability.
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