CVE-2019-12243
Istio may not check inbound TCP connections against istio-policy
9.3
CRITICAL
CVSS 3.1
EPSS 0.12%
Description
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.
How to fix CVE-2019-12243
To remediate CVE-2019-12243, upgrade the affected package to a fixed version below.
- —upgrade to 1.1.7 or later
Is CVE-2019-12243 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 1.1.0, < 1.1.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.3 | 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 |