Is CVE-2021-34429 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 99%.

What products does CVE-2021-34429 affect?

Tracked products affected include Eclipse Jetty. Check the version you run to see whether it is affected.

How do I fix CVE-2021-34429?

Apply the vendor fix in your normal patch cycle. Upgrade affected products to a fixed version.

CVE-2021-34429

Q: What is CVE-2021-34429?

CVE-2021-34429 is a medium-severity software vulnerability (Information disclosure) with a CVSS score of 5.3. 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 vu

MEDIUM severity · CVSS 5.3 · Information disclosure

5.3CVSS MEDIUM

Summary

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.

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

Confidentiality impactLow

Integrity impactNone

Availability impactNone

Exploit probability (EPSS)99%

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

Affected products we track (1)

Eclipse Jetty

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Additional information

NVD record
https://lists.apache.org/thread.html/r029c0c6833c8bb6acb094733fd7b75029d633f47a92f1c9d14391fc0%40%3Cnotifications.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r02f940c27e997a277ff14e79e84551382e1081e8978b417e0c2b0857%40%3Ccommits.kafka.apache.org%3E
https://lists.apache.org/thread.html/r0626f279ebf65506110a897e3a57ccd4072803ee5434b2503e070398%40%3Ccommits.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r2a3ea27cca2ac7352d392b023b72e824387bc9ff16ba245ec663bdc6%40%3Cissues.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r2e32390cb7aedb39069e5b18aa130ca53e766258518faee63c31d3ea%40%3Cnotifications.zookeeper.apache.org%3E
https://lists.apache.org/thread.html/r3aefe613abce594c71ace50088d2529bbde65d08b8e7ff2c2723aaa1%40%3Cdev.santuario.apache.org%3E
https://lists.apache.org/thread.html/r3c55b0baa4dc38958ae147b2f216e212605f1071297f845e14477d36%40%3Cissues.zookeeper.apache.org%3E
https://github.com/eclipse/jetty.project/security/advisories/GHSA-vjv5-gp2w-65vmAdvisory