Istio may allow identity impersonation if user has localhost access
CVE-2022-39388

7.6HIGH

Key Information:

Vendor

Istio

Status
Istio
Vendor
CVE Published:
10 November 2022

What is CVE-2022-39388?

Istio is an open platform to connect, manage, and secure microservices. In versions on the 1.15.x branch prior to 1.15.3, a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane. Version 1.15.3 contains a patch for this issue. There are no known workarounds.

Affected Version(s)

istio >= 1.15.0-beta.0, < 1.15.3

References

https://github.com/istio/istio/security/advisories/GHSA-6...
https://github.com/istio/istio/commit/346260e5115e9fbc65b...
https://github.com/istio/istio/commit/9a643e270421560afb2...

CVSS V3.1

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.