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CVE-2021-34824

HIGHCVSS 8.8/10EPSS 1.97%

Last modified

CVE-2021-34824 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.. EPSS estimates a 1.97% chance of exploitation in the next 30 days.

Description

Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
1.97%

77.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
IstioIstio>= 1.8.0, < 1.9.6
IstioIstio>= 1.10.0, < 1.10.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-34824?
Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.
How severe is CVE-2021-34824?
CVE-2021-34824 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.97% probability of exploitation in the next 30 days.
How do I fix CVE-2021-34824?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-34824?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST