fix the rule to detect the exec in EKS

[Issif]

What type of PR is this?

Uncomment one (or more) /kind <> lines:

/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind feature

Any specific area of the project related to this PR?

Uncomment one (or more) /area <> lines:

/area plugins

/area registry

/area build

/area documentation

What this PR does / why we need it:

I discovered the exec in pod in EKS are not firing alert with the current rules for k8s_audit sources.

It comes from the verb which is not correct in the current rule. The condition expects ka.verb = create but for EKS it's get. The issue might be there for other managed cluster.

Here's an example of audit log from EKS for example:

{
    "kind": "Event",
    "apiVersion": "audit.k8s.io/v1",
    "level": "Request",
    "auditID": "00c8decc-b988-4086-908b-fe8ec37b9380",
    "stage": "ResponseStarted",
    "requestURI": "/api/v1/namespaces/default/pods/cncf-76b565c64f-wpq4z/exec?command=sh&command=-c&command=command+-v+bash+%3E%2Fdev%2Fnull+%26%26+exec+bash+%7C%7C+exec+sh&container=cncf&stdin=true&stdout=true&tty=true",
    "verb": "get",
    "user": {
        "username": "kubernetes-admin",
        "uid": "aws-iam-authenticator:XXXXXX",
        "groups": [
            "system:masters",
            "system:authenticated"
        ],
        "extra": {}
    },
    "sourceIPs": [
        "X.X.X.X"
    ],
    "userAgent": "kubectl1.30.3/v1.30.3 (linux/amd64) kubernetes/6fc0a69",
    "objectRef": {
        "resource": "pods",
        "namespace": "default",
        "name": "cncf-76b565c64f-wpq4z",
        "apiVersion": "v1",
        "subresource": "exec"
    },
    "responseStatus": {
        "metadata": {},
        "code": 101
    },
    "requestReceivedTimestamp": "2025-01-17T17:13:06.287434Z",
    "stageTimestamp": "2025-01-17T17:13:06.296372Z",
    "annotations": {
        "authorization.k8s.io/decision": "allow",
        "authorization.k8s.io/reason": ""
    }
}

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

[github-actions]

Rules files suggestions

rules

Comparing c591757724cf31b7828024f19b882bfe95475d7e with latest tag plugins/k8saudit/v0.11.0

Patch changes:

• Version dependency alternative to plugin k8saudit-ovh has added
• Version dependency alternative to plugin k8saudit-ovh has added
• Version dependency alternative to plugin k8saudit-ovh has added

[poiana]

LGTM label has been added.

Git tree hash: 353e3155672fe2b2741098d3a72a06a99b32128b

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Issif, LucaGuerra

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