CVE-2019-17572: Rocketmq broker Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-5x3v-2gxr-59m2
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CWE-22
Published
Advisory Summary

CVE-2019-17572 is a MODERATE path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Rocketmq broker libraries in the Maven ecosystem. The issue involves directory traversal in apache rocketmq. Remediation is available by upgrading affected packages to version 4.6.1.

CVE-2019-17572 at a Glance

CVE Identifier CVE-2019-17572
GHSA Identifier GHSA-5x3v-2gxr-59m2
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Rocketmq broker
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2019-17572

To remediate this vulnerability, upgrade all affected Rocketmq 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.

org.apache.rocketmq:rocketmq-broker fixed: 4.6.1 
<dependency>
    <groupId>org.apache.rocketmq</groupId>
    <artifactId>rocketmq-broker</artifactId>
    <version>4.6.1</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.rocketmq

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2019-17572, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.rocketmq

Analyze the terminal output to locate any version of Rocketmq broker in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.6.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.rocketmq 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Rocketmq 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

In Apache RocketMQ 4.2.0 to 4.6.0, when the automatic topic creation in the broker is turned on by default, an evil topic like “../../../../topic2020” is sent from rocketmq-client to the broker, a topic folder will be created in the parent directory in brokers, which leads to a directory traversal vulnerability. Users of the affected versions should apply one of the following: Upgrade to Apache RocketMQ 4.6.1 or later.

CVE-2019-17572 Affected Rocketmq broker Versions

1 component(s)
Fixed Versions:
4.6.1
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.rocketmq:rocketmq-broker
maven/org.apache.rocketmq/rocketmq-broker
Maven
≥ 4.2.0
< 4.6.1
4.6.1

References

NVD — CVE-2019-17572 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-17572
Rocketmq broker Source Repository REPOSITORY
https://github.com/apache/rocketmq/issues/1637
Security Fix Commit FIX COMMIT
https://github.com/apache/rocketmq/commit/f8f6fbe4aa7f5dee937e688322628c366b12a552
lists.apache.org/thread.html/fdea1c5... WEB
https://lists.apache.org/thread.html/fdea1c5407da47a17d5522fa149a097cacded1916c1c1534d46edc6d%40%3Cprivate.rocketmq.apache.org%3E
seclists.org/oss-sec/2020/q2/112 WEB
https://seclists.org/oss-sec/2020/q2/112
snyk.io/vuln/snyk-java-orga... WEB
https://snyk.io/vuln/SNYK-JAVA-ORGAPACHEROCKETMQ-569108

Frequently Asked Questions

What is CVE-2019-17572?
CVE-2019-17572 is a security vulnerability in Rocketmq broker involving Directory traversal in Apache RocketMQ under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Rocketmq broker versions are affected?
Affected versions include releases prior to 4.6.1 across affected packages: org.apache.rocketmq:rocketmq-broker.
What version fixes CVE-2019-17572?
Upgrading to 4.6.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rocketmq-broker affected?
Yes, org.apache.rocketmq:rocketmq-broker is affected in releases prior to 4.6.1. Upgrade your dependency to 4.6.1 or later.
What CWE is associated with CVE-2019-17572?
CVE-2019-17572 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Maven dependencies for CVE-2019-17572?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.rocketmq'. 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
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5x3v-2gxr-59m2",
  "modified" : "2021-04-07T19:55:55Z",
  "published" : "2020-07-01T17:26:15Z",
  "aliases" : [ "CVE-2019-17572" ],
  "summary" : "Directory traversal in Apache RocketMQ",
  "details" : "In Apache RocketMQ 4.2.0 to 4.6.0, when the automatic topic creation in the broker is turned on by default, an evil topic like “../../../../topic2020” is sent from rocketmq-client to the broker, a topic folder will be created in the parent directory in brokers, which leads to a directory traversal vulnerability. Users of the affected versions should apply one of the following: Upgrade to Apache RocketMQ 4.6.1 or later.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.rocketmq:rocketmq-broker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.2.0"
      }, {
        "fixed" : "4.6.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-17572"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/rocketmq/issues/1637"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/rocketmq/commit/f8f6fbe4aa7f5dee937e688322628c366b12a552"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread.html/fdea1c5407da47a17d5522fa149a097cacded1916c1c1534d46edc6d%40%3Cprivate.rocketmq.apache.org%3E"
  }, {
    "type" : "WEB",
    "url" : "https://seclists.org/oss-sec/2020/q2/112"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-ORGAPACHEROCKETMQ-569108"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-07-01T17:26:05Z",
    "nvd_published_at" : null
  }
}