Added an event for defalult rule "Polkit Local Privilege Escalation Vulnerability (CVE-2021-4034)"

[GLVSKiriti]

What type of PR is this?

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

/kind bug

/kind cleanup

/kind documentation

/kind tests

/kind feature

Any specific area of the project related to this PR?

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

/area commands

/area pkg

/area events

What this PR does / why we need it:
Added an event for defalult rule "Polkit Local Privilege Escalation Vulnerability (CVE-2021-4034)" as mentioned here

Which issue(s) this PR fixes:

Fixes #149

Special notes for your reviewer:

[leogr]

Closing and reopening to trigger the CI

[leogr]

/reopen

[poiana]

@leogr: Reopened this PR.

In response to this:

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[leogr]

Function name must match the rules name as per our convention (see my comment below), otherwise SGTM.

cc @FedeDP @alacuku

[leogr]

Suggested change

	func PolkitLocalPrivilegeEscalationVulnerability(h events.Helper) error {
	func PolkitLocalPrivilegeEscalationVulnerability(h events.Helper) error {

This won't match the exact rule name, which is Polkit Local Privilege Escalation Vulnerability (CVE-2021-4034)

I guess the correct name should be PolkitLocalPrivilegeEscalationVulnerabilityCVE20214034, but I have to double-check.

This convention is important because the tester package relies on that to match rules names:

event-generator/events/registry.go

Lines 87 to 96 in 298059d

	// MatchRule returns true if the name of an action matches a given rule.
	func MatchRule(name string, rule string) bool {
	parts := strings.Split(name, ".")
	l := len(parts)
	if l == 0 {
	return false
	}
	return strings.ToLower(parts[l-1]) == strings.ToLower(nonAlphaNumericReg.ReplaceAllString(rule, ""))
	}

[poiana]

LGTM label has been added.

Git tree hash: 6a90a3299554faa7b92c3a58ef0562bd02bb2b0d

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: GLVSKiriti, leogr

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [leogr]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment