Improper Access Control Affecting istio.io/istio/pilot/pkg/security/authz/model/matcher package, versions >=1.5.0 <1.5.9 >=1.6.0 <1.6.8


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.08% (36th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-GOLANG-ISTIOIOISTIOPILOTPKGSECURITYAUTHZMODELMATCHER-1040464
  • published 2 Oct 2020
  • disclosed 2 Oct 2020
  • credit Unknown

How to fix?

Upgrade istio.io/istio/pilot/pkg/security/authz/model/matcher to version 1.5.9, 1.6.8 or higher.

Overview

istio.io/istio/pilot/pkg/security/authz/model/matcher is an open platform to connect, manage, and secure microservices.

Affected versions of this package are vulnerable to Improper Access Control. When users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
6.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
Expand this section

NVD

6.8 medium
Expand this section

Red Hat

6.8 medium