CVE Vulnerability

CVE-2020-16844

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.

4.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://istio.io/latest/news/security/istio-security-2020-009/ Exploit Mitigation
https://github.com/istio/istio/releases Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*
cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*
Information

Published : 2020-10-01 05:15

Updated : 2020-10-15 05:31

NVD link : CVE-2020-16844

Mitre link : CVE-2020-16844

Products Affected
No products.
CWE
NVD-CWE-noinfo