DubboApplication · Apache

CVE-2019-17564

CRITICAL · 9.8 CVSS v3.1 Published 2020-04-01
Fix available
A fix is available. Upgrade to after 2.7.4 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Unsafe deserialization occurs within a Dubbo application which has HTTP remoting enabled. An attacker may submit a POST request with a Java object in it to completely compromise a Provider instance of Apache Dubbo, if this instance enables HTTP. This issue affected Apache Dubbo 2.7.0 to 2.7.4, 2.6.0 to 2.6.7, and all 2.5.x versions.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Apache Dubbo contains an unsafe deserialization vulnerability in its HTTP remoting implementation. When HTTP remoting is enabled, attackers can send a POST request containing a malicious serialized Java object that gets deserialized without proper validation, leading to remote code execution and complete compromise of the Dubbo Provider instance.

MitigationUpgrade Apache Dubbo to version 2.7.5+, 2.6.8+, or later which contains the fix. If immediate patching is not possible, disable HTTP remoting or implement network-level restrictions to prevent external access to the Dubbo HTTP endpoint.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
DubboApplication
Affected:>= 2.5.0, <= 2.5.10>= 2.6.0, <= 2.6.7>= 2.7.0, <= 2.7.4

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Dubbo version
    Check your application's dependencies (Maven pom.xml, Gradle build file, or JAR manifest) for the dubbo version, or run 'grep -r "dubbo"' in your lib/dependencies directory
    Affected if The version falls within 2.5.0-2.5.10, 2.6.0-2.6.7, or 2.7.0-2.7.4
  2. Determine if HTTP remoting is enabled
    Search Dubbo configuration files (dubbo.properties, dubbo.xml, application.yml) for 'dubbo.protocol.name=http' or check for HTTP transport configuration in the provider settings
    Affected if HTTP protocol (dubbo.protocol.name=http) is explicitly configured as the remoting protocol
  3. Verify HTTP port exposure
    Check network configuration for port 8080 or the configured HTTP port, or review firewall rules and container network settings
    Affected if The Dubbo HTTP endpoint is accessible from untrusted network segments
  4. Inspect deserialization configuration
    Review Dubbo provider configuration for any existing SerializationConfig or ObjectInput filters, check if Hessian or Java serialization is in use
    Affected if No custom ObjectInput filter is configured and Hessian or Java deserialization is used for the HTTP endpoint

You are affected if your Dubbo version is within the vulnerable ranges AND HTTP remoting is enabled and exposed, allowing unauthenticated attackers to send malicious serialized payloads to your HTTP endpoint.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 2.7.4
Interim mitigation

Upgrade Apache Dubbo to version 2.7.5+, 2.6.8+, or later which contains the fix. If immediate patching is not possible, disable HTTP remoting or implement network-level restrictions to prevent external access to the Dubbo HTTP endpoint.

Recommended fix High confidence

Dubbo 2.7.5 or later (or 2.6.8+/2.5.11+ depending on your major version branch)

  1. Identify the current Dubbo version in use by checking project dependencies (pom.xml, build.gradle, or equivalent)
  2. For Dubbo 2.5.x users: upgrade to version 2.5.11 or later
  3. For Dubbo 2.6.x users: upgrade to version 2.6.8 or later
  4. For Dubbo 2.7.x users: upgrade to version 2.7.5 or later (recommended: latest 2.7.x stable release)
  5. Update the version in build configuration files (pom.xml, build.gradle, etc.)
  6. Rebuild and redeploy the application
  7. Verify that HTTP remoting is only enabled when necessary; consider disabling it if not required for the application's functionality
  8. Test the application thoroughly after upgrade to ensure compatibility
Caveat Minor point releases typically have backward compatibility, but test thoroughly as with any upgrade; review Dubbo release notes for any breaking changes between your version and the target version

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Dubbo Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-17564 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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