CVE Vulnerabilities

CVE-2020-16844

Published: Oct 01, 2020 | Modified: Oct 15, 2020
CVSS 3.x
6.8
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
4.9 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, 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.

Affected Software

Name Vendor Start Version End Version
Istio Istio 1.5.0 1.5.8
Istio Istio 1.6.0 1.6.7

References