CVE Vulnerability

CVE-2021-31920

Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://istio.io/latest/news/security/istio-security-2021-005/ Exploit Vendor Advisory
Configurations

Configuration 1

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

Published : 2021-05-27 05:15

Updated : 2022-07-12 05:42

NVD link : CVE-2021-31920

Mitre link : CVE-2021-31920

Products Affected
No products.
CWE
CWE-706