CVE-2021-31921

Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected services in the cluster, bypassing authorization checks, when a gateway is configured with AUTO_PASSTHROUGH routing configuration.

CVSS v3 9.8 CRITICAL
CVSS v2.0 6.8 MEDIUM

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://istio.io/latest/news/security/istio-security-2021-006/	Exploit Vendor Advisory
https://istio.io/latest/news/security/istio-security-2021-006/	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:istio:istio::::::::
	cpe:2.3:a:istio:istio::::::::

History

21 Nov 2024, 06:06

Type	Values Removed	Values Added
References	~~() https://istio.io/latest/news/security/istio-security-2021-006/ - Exploit, Vendor Advisory~~	() https://istio.io/latest/news/security/istio-security-2021-006/ - Exploit, Vendor Advisory

Information

Published : 2021-06-02 16:15

Updated : 2024-11-21 06:06

NVD link : CVE-2021-31921

Mitre link : CVE-2021-31921

CVE.ORG link : CVE-2021-31921

JSON object : View

Products Affected

istio

istio

CWE

CWE-862

Missing Authorization

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