CVE-2021-31920

CVE Details

Release Date:

2021-05-27

Description

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.

See more information about CVE-2021-31920 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	6.5	Base Metrics:	AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	None	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (istio)	ELSA-2021-9397	2021-08-06
Oracle Linux version 7 (istio)	ELSA-2021-9399	2021-08-06
Oracle Linux version 7 (kubernetes)	ELSA-2021-9397	2021-08-06
Oracle Linux version 7 (kubernetes)	ELSA-2021-9399	2021-08-06
Oracle Linux version 7 (olcne)	ELSA-2021-9397	2021-08-06
Oracle Linux version 7 (olcne)	ELSA-2021-9399	2021-08-06
Oracle Linux version 8 (istio)	ELSA-2021-9396	2021-08-06
Oracle Linux version 8 (istio)	ELSA-2021-9398	2021-08-06
Oracle Linux version 8 (kubernetes)	ELSA-2021-9396	2021-08-06
Oracle Linux version 8 (kubernetes)	ELSA-2021-9398	2021-08-06
Oracle Linux version 8 (olcne)	ELSA-2021-9396	2021-08-06
Oracle Linux version 8 (olcne)	ELSA-2021-9398	2021-08-06

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team