# What is CVE-2021-34429?

> CVE-2021-34429 is a medium-severity flaw (CVSS 5.3) in Jetty from Eclipse, published on 15 July 2021. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at over 99%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2021-34429

## At a glance

- **Verdict:** Fix this soon. Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.
- **Precursor Intelligence risk score:** 63 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 5.3 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** over 99% (latest exploit-likelihood forecast)
- **Published:** 15 July 2021
- **Record last updated:** 7 November 2023
- **Main product:** Jetty from Eclipse
- **Affected products:** 18

## What is CVE-2021-34429? In plain terms

It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read some data.

### The official 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 kind of flaw is it?

- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-551: Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

### How an attack on it works

- Where an attacker can be: Anywhere on the internet
- How hard it is to pull off: Easy: no special conditions
- Login needed first: No login needed
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read some data

Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`

## Is CVE-2021-34429 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at over 99%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: >99%, >99%, >99%, >99%, >99%, >99%, >99%.

### Timeline

- 15 July 2021: Published
- 7 November 2023: Record last updated

### How Precursor Intelligence ranks it

CVE-2021-34429 scores **63 out of 100 (Medium)**, with the action "Plan remediation".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2021-34429?

The published record lists 18 products. Versions are as published: "9.4.37 to before 9.4.43" means from 9.4.37 up to, but not including, 9.4.43.

- [Jetty](https://www.precursorintelligence.com/product/eclipse/jetty) by [Eclipse](https://www.precursorintelligence.com/vendors/eclipse) (Application): 9.4.37 to before 9.4.43, 10.0.1 to before 10.0.6, 11.0.1 to before 11.0.6
- [Financial Services Crime and Compliance Management Studio](https://www.precursorintelligence.com/product/oracle/financial_services_crime_and_compliance_management_studio) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.0.8.2.0, 8.0.8.3.0
- [Autovue for Agile Product Lifecycle Management](https://www.precursorintelligence.com/product/oracle/autovue_for_agile_product_lifecycle_management) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 21.0.2
- [Communications Cloud Native Core Binding Support Function](https://www.precursorintelligence.com/product/oracle/communications_cloud_native_core_binding_support_function) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.10.0
- [Communications Cloud Native Core Security Edge Protection Proxy](https://www.precursorintelligence.com/product/oracle/communications_cloud_native_core_security_edge_protection_proxy) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.5.0
- [Communications Cloud Native Core Service Communication Proxy](https://www.precursorintelligence.com/product/oracle/communications_cloud_native_core_service_communication_proxy) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.14.0
- [Communications Cloud Native Core Unified Data Repository](https://www.precursorintelligence.com/product/oracle/communications_cloud_native_core_unified_data_repository) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 1.14.0
- [Communications Diameter Signaling Router](https://www.precursorintelligence.com/product/oracle/communications_diameter_signaling_router) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 8.0.0.0 to 8.5.0.2
- [E-Series Santricity OS Controller](https://www.precursorintelligence.com/product/netapp/e-series_santricity_os_controller) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): 11.0 to 11.70.1
- [E-Series Santricity Web Services](https://www.precursorintelligence.com/product/netapp/e-series_santricity_web_services) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Element Plug-in for Vcenter Server](https://www.precursorintelligence.com/product/netapp/element_plug-in_for_vcenter_server) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Hci Management Node](https://www.precursorintelligence.com/product/netapp/hci_management_node) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Rest Data Services](https://www.precursorintelligence.com/product/oracle/rest_data_services) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 22.1.1
- [Retail Eftlink](https://www.precursorintelligence.com/product/oracle/retail_eftlink) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): 20.0.1
- [Snap Creator Framework](https://www.precursorintelligence.com/product/netapp/snap_creator_framework) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Snapcenter Plug-in](https://www.precursorintelligence.com/product/netapp/snapcenter_plug-in) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Solidfire](https://www.precursorintelligence.com/product/netapp/solidfire) by [Netapp](https://www.precursorintelligence.com/vendors/netapp) (Application): version not specified
- [Stream Analytics](https://www.precursorintelligence.com/product/oracle/stream_analytics) by [Oracle](https://www.precursorintelligence.com/vendors/oracle) (Application): before 19.1.0.0.6.4

## How do I fix CVE-2021-34429?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisories and patch notes first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [oracle.com](https://www.oracle.com/security-alerts/cpuapr2022.html) (Patch, Third-party advisory)
- [oracle.com](https://www.oracle.com/security-alerts/cpujan2022.html) (Patch, Third-party advisory)
- [oracle.com](https://www.oracle.com/security-alerts/cpujul2022.html) (Patch, Third-party advisory)
- [github.com](https://github.com/eclipse/jetty.project/security/advisories/GHSA-vjv5-gp2w-65vm) (Exploit, Third-party advisory)
- [lists.apache.org](https://lists.apache.org/thread.html/r029c0c6833c8bb6acb094733fd7b75029d633f47a92f1c9d14391fc0%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r02f940c27e997a277ff14e79e84551382e1081e8978b417e0c2b0857%40%3Ccommits.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r0626f279ebf65506110a897e3a57ccd4072803ee5434b2503e070398%40%3Ccommits.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r2a3ea27cca2ac7352d392b023b72e824387bc9ff16ba245ec663bdc6%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r2e32390cb7aedb39069e5b18aa130ca53e766258518faee63c31d3ea%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r3aefe613abce594c71ace50088d2529bbde65d08b8e7ff2c2723aaa1%40%3Cdev.santuario.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r3c55b0baa4dc38958ae147b2f216e212605f1071297f845e14477d36%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r44ea39ca8110de7353bfec88f58aa3aa58a42bb324b8772512ee190c%40%3Ccommits.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r46900f74dbb7d168aeac43bf0e7f64825376bb7eb74d31a5b33344ce%40%3Cjira.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r46f748c1dc9cf9b6c1c18f6b5bfc3a869907f68f72e17666f2f30f24%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r4727d282b5c2d951057845a46065d59f6e33132edc0a14f41c26b01e%40%3Cdev.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r48a93f2bc025acd7c7e341ed3864bfdeb75f0c768d41bc247e1a1f63%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r5678d994d4dd8e7c838eed3bbc1a83a7f6bc62724b0cce67e8892a45%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r679d96f981d4c92724090ed2d5e8565a1d655a72bb315550489f052e%40%3Cjira.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r6e6f50c1ce1fb592cb43e913f5be23df104d50751465f8f1952ace0c%40%3Cjira.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r721ab6a5fa8d45bec76714b674f5d4caed2ebfeca69ad1d6d4caae6c%40%3Cdev.hbase.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r74fdc446df551fe89a0a16957a1bfdaad19380e0c1afd30625685a9c%40%3Cjira.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r756443e9d50af7e8c3df82e2c45105f452c8e8195ddbc0c00f58d5fe%40%3Ccommits.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r763840320a80e515331cbc1e613fa93f25faf62e991974171a325c82%40%3Cdev.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r7dd079fa0ac6f47ba1ad0af98d7d0276547b8a4e005f034fb1016951%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r833a4c8bdbbfeb8a2cd38238e7b59f83edd5c1a0e508b587fc551a46%40%3Cissues.hbase.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r8e6c116628c1277c3cf132012a66c46a0863fa2a3037c0707d4640d4%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r90e7b4c42a96d74c219e448bee6a329ab0cd3205c44b63471d96c3ab%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r9d245c6c884bbc804a472116d730c1a01676bf24f93206a34923fc64%40%3Ccommits.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/r9e6158d72ef25077c2dc59fbddade2eacf7d259a2556c97a989f2fe8%40%3Ccommits.pulsar.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rb33d65c3e5686f2e3b9bb8a032a44163b2f2ad9d31a8727338f213c1%40%3Ccommits.pulsar.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rc26807be68748b3347decdcd03ae183622244b0b4cb09223d4b7e500%40%3Ccommits.pulsar.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rcb157f55b9ae41b3076801de927c6fca1669c6d8eaf11a9df5dbeb46%40%3Cnotifications.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/rcea249eb7a0d243f21696e4985de33f3780399bf7b31ea1f6d489b8b%40%3Cissues.zookeeper.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/re01890eef49d4201018f2c97e26536e3e75f441ecdbcf91986c3bc17%40%3Cjira.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/re3de01414ccf682fe0951205f806dd8e94440798fd64c55a4941de3e%40%3Cjira.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/re5e9bb535db779506013ef8799dc2a299e77cdad6668aa94c456dba6%40%3Cjira.kafka.apache.org%3E)
- [lists.apache.org](https://lists.apache.org/thread.html/re850203ef8700cb826534dd4a1cb9f5b07bb8f6f973b39ff7838d3ba%40%3Cissues.hbase.apache.org%3E)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20210819-0006/) (Third-party advisory)

## Questions

### What is CVE-2021-34429?

CVE-2021-34429 is a medium-severity flaw in Jetty from Eclipse, published on 15 July 2021. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read some data.

### How serious is CVE-2021-34429?

It scores 5.3 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2021-34429 is 63 out of 100, which is Medium. Its action is "Plan remediation". Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.

### Is CVE-2021-34429 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at over 99%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2021-34429 affect?

For Jetty from Eclipse: 9.4.37 to before 9.4.43, 10.0.1 to before 10.0.6, 11.0.1 to before 11.0.6. The record lists 18 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2021-34429?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2021-34429 affect you?

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