CVE-2024-29834: Apache Pulsar Improper Authorization For Namespace And Vulnerability

MODERATE
Advisory Identifier: GHSA-7mg2-6c6v-342r
CVSS 6.4
CWE-863
Published
Advisory Summary

CVE-2024-29834 is a MODERATE (CVSS 6.4) improper authorization for namespace and vulnerability (CWE-863: Incorrect Authorization) affecting Apache Pulsar libraries in the Maven ecosystem. The issue involves improper authorization for namespace and topic management endpoints. Remediation is available by upgrading affected packages to version 3.0.4, 3.2.2.

CVE-2024-29834 at a Glance

CVE Identifier CVE-2024-29834
GHSA Identifier GHSA-7mg2-6c6v-342r
Severity MODERATE
CVSS v3.1 Base Score 6.4
CWE Classification CWE-863: Incorrect Authorization
Affected Product Apache Pulsar
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2024-29834

To remediate this vulnerability, upgrade all affected Apache Pulsar dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.pulsar:pulsar-broker fixed: Latest secure release
<dependency>
    <groupId>org.apache.pulsar</groupId>
    <artifactId>pulsar-broker</artifactId>
    <version>Latest secure release</version>
</dependency>
org.apache.pulsar:pulsar-broker fixed: Latest secure release
<dependency>
    <groupId>org.apache.pulsar</groupId>
    <artifactId>pulsar-broker</artifactId>
    <version>Latest secure release</version>
</dependency>
org.apache.pulsar:pulsar-broker fixed: 3.0.4
<dependency>
    <groupId>org.apache.pulsar</groupId>
    <artifactId>pulsar-broker</artifactId>
    <version>3.0.4</version>
</dependency>
org.apache.pulsar:pulsar-broker fixed: Latest secure release
<dependency>
    <groupId>org.apache.pulsar</groupId>
    <artifactId>pulsar-broker</artifactId>
    <version>Latest secure release</version>
</dependency>
org.apache.pulsar:pulsar-broker fixed: 3.2.2
<dependency>
    <groupId>org.apache.pulsar</groupId>
    <artifactId>pulsar-broker</artifactId>
    <version>3.2.2</version>
</dependency>
Verify Direct and Transitive Dependencies

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-2024-29834, 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 Apache Pulsar in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.0.4), 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-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Apache Pulsar, 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

This vulnerability allows authenticated users with produce or consume permissions to perform unauthorized operations on partitioned topics, such as unloading topics and triggering compaction. These management operations should be restricted to users with the tenant admin role or superuser role. An authenticated user with produce permission can create subscriptions and update subscription properties on partitioned topics, even though this should be limited to users with consume permissions. This impact analysis assumes that Pulsar has been configured with the default authorization provider. For custom authorization providers, the impact could be slightly different. Additionally, the vulnerability allows an authenticated user to read, create, modify, and delete namespace properties in any namespace in any tenant. In Pulsar, namespace properties are reserved for user provided metadata about the namespace. This issue affects Apache Pulsar versions from 2.7.1 to 2.10.6, from 2.11.0 to 2.11.4, from 3.0.0 to 3.0.3, from 3.1.0 to 3.1.3, and from 3.2.0 to 3.2.1. 3.0 Apache Pulsar users should upgrade to at least 3.0.4. 3.1 and 3.2 Apache Pulsar users should upgrade to at least 3.2.2. Users operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions.

CVE-2024-29834 Affected Apache Pulsar Versions

5 component(s)
Fixed Versions:
3.0.43.2.2
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.pulsar:pulsar-broker
Maven
≥ 2.7.1
≤ 2.10.6
org.apache.pulsar:pulsar-broker
Maven
≥ 2.11.0
≤ 2.11.4
org.apache.pulsar:pulsar-broker
Maven
≥ 3.0.0
< 3.0.4
3.0.4
org.apache.pulsar:pulsar-broker
Maven
≥ 3.1.0
≤ 3.1.3
org.apache.pulsar:pulsar-broker
Maven
≥ 3.2.0
< 3.2.2
3.2.2

References

Frequently Asked Questions

What is CVE-2024-29834?
CVE-2024-29834 is a security vulnerability in Apache Pulsar involving Improper Authorization For Namespace and Topic Management Endpoints under CWE-863: Incorrect Authorization.
Which Apache Pulsar versions are affected?
Affected versions include releases prior to 3.0.4, 3.2.2 across affected packages: org.apache.pulsar:pulsar-broker.
What version fixes CVE-2024-29834?
Upgrading to 3.0.4, 3.2.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pulsar-broker affected?
Yes, org.apache.pulsar:pulsar-broker is affected in releases prior to Latest secure release, 3.0.4, 3.2.2. Upgrade your dependency to Latest secure release, 3.0.4, 3.2.2 or later.
What is the CVSS score of CVE-2024-29834?
CVE-2024-29834 has a CVSS v3.1 base score of 6.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2024-29834?
CVE-2024-29834 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check Maven dependencies for CVE-2024-29834?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.pulsar'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-7mg2-6c6v-342r",
  "modified" : "2024-05-02T18:48:41Z",
  "published" : "2024-04-02T21:30:27Z",
  "aliases" : [ "CVE-2024-29834" ],
  "summary" : "Apache Pulsar: Improper Authorization For Namespace and Topic Management Endpoints",
  "details" : "This vulnerability allows authenticated users with produce or consume permissions to perform unauthorized operations on partitioned topics, such as unloading topics and triggering compaction. These management operations should be restricted to users with the tenant admin role or superuser role. An authenticated user with produce permission can create subscriptions and update subscription properties on partitioned topics, even though this should be limited to users with consume permissions. This impact analysis assumes that Pulsar has been configured with the default authorization provider. For custom authorization providers, the impact could be slightly different. Additionally, the vulnerability allows an authenticated user to read, create, modify, and delete namespace properties in any namespace in any tenant. In Pulsar, namespace properties are reserved for user provided metadata about the namespace.\n\nThis issue affects Apache Pulsar versions from 2.7.1 to 2.10.6, from 2.11.0 to 2.11.4, from 3.0.0 to 3.0.3, from 3.1.0 to 3.1.3, and from 3.2.0 to 3.2.1. \n\n3.0 Apache Pulsar users should upgrade to at least 3.0.4.\n3.1 and 3.2 Apache Pulsar users should upgrade to at least 3.2.2.\n\nUsers operating versions prior to those listed above should upgrade to the aforementioned patched versions or newer versions.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.pulsar:pulsar-broker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.7.1"
      }, {
        "last_affected" : "2.10.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.pulsar:pulsar-broker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.11.0"
      }, {
        "last_affected" : "2.11.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.pulsar:pulsar-broker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.0.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.pulsar:pulsar-broker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.1.0"
      }, {
        "last_affected" : "3.1.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.pulsar:pulsar-broker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.2.0"
      }, {
        "fixed" : "3.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-29834"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/pulsar/commit/6ffe667cddad3e959e02ce31fd09b2f9a439d50a"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/pulsar/commit/b51b74883fb66673161d0b73c6a7257d073c57a5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/pulsar"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/v0ltl94k9lg28qfr1f54hpkvvsjc5bj5"
  }, {
    "type" : "WEB",
    "url" : "https://pulsar.apache.org/security/CVE-2024-29834"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2024/04/02/2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-03T20:26:35Z",
    "nvd_published_at" : "2024-04-02T20:15:09Z"
  }
}