Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTZnNWYtZjVwbS1tanJn

Istio may not check inbound TCP connections against istio-policy

Istio 1.1.x through 1.1.6 has Incorrect Access Control. When disablePolicyChecks is set to false, inbound TCP connections do not generate Check requests to istio-policy and external authorization is not applied.

This behavior is a result of a change to istio/pilot/pkg/networking/plugin/mixer/mixer.go in 1.1.

Permalink: https://github.com/advisories/GHSA-6g5f-f5pm-mjrg
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTZnNWYtZjVwbS1tanJn
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 2 years ago
Updated: 7 months ago

CVSS Score: 8.9
CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:H/RL:O/RC:C

Identifiers: GHSA-6g5f-f5pm-mjrg, CVE-2019-12243
References:

• https://nvd.nist.gov/vuln/detail/CVE-2019-12243
• https://istio.io/blog/2019/cve-2019-12243/
• https://github.com/istio/istio/issues/13868
• https://github.com/istio/istio/pull/13893/commits/91faba277439dab798185730d1624bd53e37bb06
• https://github.com/advisories/GHSA-6g5f-f5pm-mjrg

Repository: https://github.com/istio/istio
Blast Radius: 19.3

Affected Packages