CVE-2022-33683: Pulsar broker Improper Certificate Validation Vulnerability
MODERATECVE-2022-33683 is a MODERATE (CVSS 5.9) improper certificate validation vulnerability (CWE-295: Improper Certificate Validation) affecting Pulsar broker libraries in the Maven ecosystem. The issue involves apache pulsar brokers and proxies vulnerable to improper certificate validation. Remediation is available by upgrading affected packages to version 2.7.5, 2.8.4, 2.9.3, 2.10.1.
CVE-2022-33683 at a Glance
Security Impact
CVSS: 5.9
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
How to Fix CVE-2022-33683
To remediate this vulnerability, upgrade all affected Pulsar broker dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-broker</artifactId>
<version>2.7.5</version>
</dependency>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-proxy</artifactId>
<version>2.7.5</version>
</dependency>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-broker</artifactId>
<version>2.8.4</version>
</dependency>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-proxy</artifactId>
<version>2.8.4</version>
</dependency>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-broker</artifactId>
<version>2.9.3</version>
</dependency>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-proxy</artifactId>
<version>2.9.3</version>
</dependency>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-broker</artifactId>
<version>2.10.1</version>
</dependency>
<dependency>
<groupId>org.apache.pulsar</groupId>
<artifactId>pulsar-proxy</artifactId>
<version>2.10.1</version>
</dependency>
Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.apache.pulsar
How to Check if You Are Affected
To determine whether your Java application is affected by CVE-2022-33683, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.apache.pulsar
Analyze the terminal output to locate any version of Pulsar broker in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.7.5), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.apache.pulsar command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-295: Improper Certificate Validation, where the product does not validate, or incorrectly validates, a certificate. In Pulsar broker, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2022-33683 Affected Pulsar broker Versions
8 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.apache.pulsar:pulsar-broker
|
Maven |
< 2.7.5
|
2.7.5
|
|
org.apache.pulsar:pulsar-proxy
|
Maven |
< 2.7.5
|
2.7.5
|
|
org.apache.pulsar:pulsar-broker
|
Maven |
≥ 2.8.0
< 2.8.4
|
2.8.4
|
|
org.apache.pulsar:pulsar-proxy
|
Maven |
≥ 2.8.0
< 2.8.4
|
2.8.4
|
|
org.apache.pulsar:pulsar-broker
|
Maven |
≥ 2.9.0
< 2.9.3
|
2.9.3
|
|
org.apache.pulsar:pulsar-proxy
|
Maven |
≥ 2.9.0
< 2.9.3
|
2.9.3
|
|
org.apache.pulsar:pulsar-broker
|
Maven |
≥ 2.10.0
< 2.10.1
All 1 versions
2.10.0
|
2.10.1
|
|
org.apache.pulsar:pulsar-proxy
|
Maven |
≥ 2.10.0
< 2.10.1
All 1 versions
2.10.0
|
2.10.1
|
References
Frequently Asked Questions
What is CVE-2022-33683?
Which Pulsar broker versions are affected?
What version fixes CVE-2022-33683?
Is pulsar-broker affected?
Is pulsar-proxy affected?
What is the CVSS score of CVE-2022-33683?
What CWE is associated with CVE-2022-33683?
How can I check Maven dependencies for CVE-2022-33683?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-j3qw-g67q-7m64",
"modified" : "2022-09-30T04:26:00Z",
"published" : "2022-09-25T00:00:27Z",
"aliases" : [ "CVE-2022-33683" ],
"summary" : "Apache Pulsar Brokers and Proxies vulnerable to Improper Certificate Validation",
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-broker"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.7.5"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-proxy"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.7.5"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-broker"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.8.0"
}, {
"fixed" : "2.8.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-proxy"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.8.0"
}, {
"fixed" : "2.8.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-broker"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.9.0"
}, {
"fixed" : "2.9.3"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-proxy"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.9.0"
}, {
"fixed" : "2.9.3"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-broker"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.10.0"
}, {
"fixed" : "2.10.1"
} ]
} ],
"versions" : [ "2.10.0" ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.apache.pulsar:pulsar-proxy"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.10.0"
}, {
"fixed" : "2.10.1"
} ]
} ],
"versions" : [ "2.10.0" ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-33683"
}, {
"type" : "WEB",
"url" : "https://lists.apache.org/thread/42v5rsxj36r3nhfxhmhb2x12r5jmvx3x"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-295" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2022-09-30T04:26:00Z",
"nvd_published_at" : "2022-09-23T10:15:00Z"
}
}