CVE Vulnerability

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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

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

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
https://access.redhat.com/errata/RHSA-2020:0477 Third Party Advisory
Configurations

Configuration 1

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

Published : 2020-02-12 03:15

Updated : 2020-02-20 04:15

NVD link : CVE-2020-8595

Mitre link : CVE-2020-8595

Products Affected
No products.
CWE
CWE-287