CVE-2022-33683: Disabled Certificate Validation makes Broker, Proxy Admin Clients vulnerable to MITM attack
First published: Fri Sep 23 2022(Updated: )
Apache Pulsar Brokers and Proxies create an internal Pulsar Admin Client that does not verify peer TLS certificates, even when tlsAllowInsecureConnection is disabled via configuration. The Pulsar Admin Client's intra-cluster and geo-replication HTTPS connections are vulnerable to man in the middle attacks, which could leak authentication data, configuration data, and any other data sent by these clients. An attacker can only take advantage of this vulnerability by taking control of a machine 'between' the client and the server. The attacker must then actively manipulate traffic to perform the attack. This issue affects Apache Pulsar Broker and Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.3; 2.9.0 to 2.9.2; 2.10.0; 2.6.4 and earlier.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Pulsar | <2.7.5 | |
| Apache Pulsar | >=2.8.0<2.8.4 | |
| Apache Pulsar | >=2.9.0<2.9.3 | |
| Apache Pulsar | =2.10.0 |
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Frequently Asked Questions
What is CVE-2022-33683?
CVE-2022-33683 is a vulnerability in Apache Pulsar Brokers and Proxies that allows man-in-the-middle attacks on intra-cluster and geo-replication HTTPS connections.
How severe is CVE-2022-33683?
CVE-2022-33683 has a severity score of 5.9, which is considered medium.
Which versions of Apache Pulsar are affected by CVE-2022-33683?
CVE-2022-33683 affects Apache Pulsar versions up to and including 2.7.5, versions between 2.8.0 and 2.8.4, versions between 2.9.0 and 2.9.3, and version 2.10.0.
How can I fix CVE-2022-33683?
To fix CVE-2022-33683, upgrade to a version of Apache Pulsar that is not affected by the vulnerability.
Where can I find more information about CVE-2022-33683?
More information about CVE-2022-33683 can be found at the following reference link: [https://lists.apache.org/thread/42v5rsxj36r3nhfxhmhb2x12r5jmvx3x](https://lists.apache.org/thread/42v5rsxj36r3nhfxhmhb2x12r5jmvx3x)
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