CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
AI Score
Confidence
High
EPSS
Percentile
40.0%
Argo CD Cluster secrets might be managed declaratively using Argo CD / kubectl apply. As a result, the full secret body is stored inkubectl.kubernetes.io/last-applied-configuration
annotation.
https://github.com/argoproj/argo-cd/pull/7139 introduced the ability to manage cluster labels and annotations. Since clusters are stored as secrets it also exposes the kubectl.kubernetes.io/last-applied-configuration
annotation which includes full secret body. In order to view the cluster annotations via the Argo CD API, the user must have clusters, get
RBAC access.
Note: In many cases, cluster secrets do not contain any actually-secret information. But sometimes, as in bearer-token auth, the contents might be very sensitive.
The bug has been patched in the following versions:
Update/Deploy cluster secret with server-side-apply
flag which does not use or rely on kubectl.kubernetes.io/last-applied-configuration
annotation. Note: annotation for existing secrets will require manual removal.
github.com/argoproj/argo-cd
github.com/argoproj/argo-cd/commit/44e52c4ae76e6da1343bdd54e57a822d93549f28
github.com/argoproj/argo-cd/commit/4b2e5b06bff2ffd8ed1970654ddd8e55fc4a41c4
github.com/argoproj/argo-cd/commit/7122b83fc346ec2729227405a2f9c2aa84b0bf80
github.com/argoproj/argo-cd/pull/7139
github.com/argoproj/argo-cd/releases/tag/v2.6.15
github.com/argoproj/argo-cd/releases/tag/v2.7.14
github.com/argoproj/argo-cd/releases/tag/v2.8.3
github.com/argoproj/argo-cd/security/advisories/GHSA-fwr2-64vr-xv9m
nvd.nist.gov/vuln/detail/CVE-2023-40029
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
AI Score
Confidence
High
EPSS
Percentile
40.0%