PT-2021-20672 · Istio · Istio

Antonin Nycz + 3 · Published 2021-06-28 · Updated 2022-07-12 · CVE-2021-34824

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Istio versions 1.8.x through 1.10.1

Description: The issue allows credentials specified in the Gateway and DestinationRule credentialName field to be accessed from different namespaces. This is a remotely exploitable vulnerability.

Recommendations: For Istio versions 1.8.x through 1.10.1, update to a version that contains a fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2021-34824

Affected Products

Istio

References · 10

• https://osv.dev/vulnerability/CVE-2021-34824 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9397.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9399.html · Vendor Advisory
• https://istio.io/latest/news/security/istio-security-2021-007 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9396.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-9398.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34824 · Security Note
• https://github.com/istio/istio/releases · Note
• https://t.me/k8security/330 · Telegram Post
• https://t.me/cvenotify/21188 · Telegram Post