CVE-2020-8595

Istio versions 1.2.10 (End of Life) and prior, 1.3 through 1.3.7, and 1.4 through 1.4.3 allows authentication bypass. The Authentication Policy exact-path matching logic can allow unauthorized access to HTTP paths even if they are configured to be only accessed after presenting a valid JWT token. For example, an attacker can add a ? or # character to a URI that would otherwise satisfy an exact-path match.

CVSS v3.0 7.3 HIGH
CVSS v2.0 7.5 HIGH

7.3^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://istio.io/news/security/istio-security-2020-001/	Patch Vendor Advisory
https://github.com/istio/istio/commits/master	Patch
https://istio.io/news/security/	Vendor Advisory
https://access.redhat.com/security/cve/cve-2020-8595	Mitigation Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-8595	Issue Tracking Mitigation Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0477	Third Party Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

AND

cpe:2.3:a:redhat:openshift_service_mesh:1.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Information

Published : 2020-02-12 07:15

Updated : 2020-02-20 08:15

NVD link : CVE-2020-8595

Mitre link : CVE-2020-8595

JSON object : View

CWE

CWE-287

Improper Authentication

Products Affected

redhat

enterprise_linux
openshift_service_mesh

istio

istio

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7.3 /10