Kuma is a modern Envoy-based service mesh that can run on every cloud across both Kubernetes and VMs. Prior to 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7, a kumactl profile manually configured for an HTTPS control plane without --ca-cert-file disables TLS peer verification and sends API tokens over the unverified connection. An attacker on the network path can intercept user or administrator API tokens and act against the control plane as the compromised user.
The default local profile is unaffected because it uses plain HTTP. This issue is fixed in versions 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7.
Attack Parameters
Attack Vector
Adjacent
Requires local network access
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 8
https://github.com/kumahq/kuma/commit/2d0fb382924598f8746bc85c896f50384675940f
security-advisories@github.com
https://github.com/kumahq/kuma/commit/85716397ffa404234bf365da0967eca0b0fa1870
security-advisories@github.com
https://github.com/kumahq/kuma/commit/a256af4869ae7e0ebbc2a14dc231e04ac8df1ba3
security-advisories@github.com
https://github.com/kumahq/kuma/commit/bb56ae628753aaec1f7846a514ab4edc35c0b569
security-advisories@github.com
https://github.com/kumahq/kuma/commit/d4ae0c0151596be991897651f20c5cdf32de1980
security-advisories@github.com
https://github.com/kumahq/kuma/commit/eb81494c2c7a5536e55c19cdde51b02a03b51e11
security-advisories@github.com
https://github.com/kumahq/kuma/pull/16777
security-advisories@github.com
https://github.com/kumahq/kuma/security/advisories/GHSA-v95x-xhq5-4929
security-advisories@github.com