CVE-2022-33682: Disabled Hostname Verification makes Brokers, Proxies vulnerable to MITM attack
First published: Fri Sep 23 2022(Updated: )
TLS hostname verification cannot be enabled in the Pulsar Broker's Java Client, the Pulsar Broker's Java Admin Client, the Pulsar WebSocket Proxy's Java Client, and the Pulsar Proxy's Admin Client leaving intra-cluster connections and geo-replication connections vulnerable to man in the middle attacks, which could leak credentials, configuration data, message data, and any other data sent by these clients. The vulnerability is for both the pulsar+ssl protocol and HTTPS. 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 by providing the client with a cryptographically valid certificate for an unrelated host. This issue affects Apache Pulsar Broker, Proxy, and WebSocket 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 the vulnerability ID?
The vulnerability ID is CVE-2022-33682.
What software is affected by this vulnerability?
The Apache Pulsar software versions up to 2.7.5, versions 2.8.0 to 2.8.4, versions 2.9.0 to 2.9.3, and version 2.10.0 are affected.
What is the severity of CVE-2022-33682?
The severity of CVE-2022-33682 is medium with a severity score of 5.9.
What is the CWE ID for this vulnerability?
The CWE ID for this vulnerability is CWE-295.
How can I fix CVE-2022-33682?
To fix CVE-2022-33682, upgrade to a version of Apache Pulsar that is not affected by the vulnerability.
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