Bug 1996915 (CVE-2021-39156) - CVE-2021-39156 istio/istio: HTTP request with fragment in URI can bypass authorization mechanisms
Summary: CVE-2021-39156 istio/istio: HTTP request with fragment in URI can bypass auth...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-39156
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1996912
TreeView+ depends on / blocked
 
Reported: 2021-08-24 01:59 UTC by Mark Cooper
Modified: 2023-09-01 01:22 UTC (History)
5 users (show)

Fixed In Version: istio 1.11.1, istio 1.10.4, istio 1.9.8
Doc Type: If docs needed, set a value
Doc Text:
An authorization bypass vulnerability was found in istio/istio. An HTTP request is incorrectly evaluated when a URI #fragment is specified. This flaw allows an attacker to bypass an Istio URI-based authorization rule. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Clone Of:
Environment:
Last Closed: 2021-08-25 15:34:54 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:3272 0 None None None 2021-08-25 09:35:28 UTC
Red Hat Product Errata RHSA-2021:3273 0 None None None 2021-08-25 09:34:41 UTC

Description Mark Cooper 2021-08-24 01:59:38 UTC 
Istio through 1.11.0 contains a vulnerability where an HTTP request with a URI #fragment can bypass authorization mechanisms. A subset of this security issue is address in the Envoy proxy, CVE-2021-32779.
Comment 2 errata-xmlrpc 2021-08-25 09:34:40 UTC 
This issue has been addressed in the following products:

  OpenShift Service Mesh 1.1

Via RHSA-2021:3273 https://access.redhat.com/errata/RHSA-2021:3273
Comment 3 errata-xmlrpc 2021-08-25 09:35:27 UTC 
This issue has been addressed in the following products:

  OpenShift Service Mesh 2.0

Via RHSA-2021:3272 https://access.redhat.com/errata/RHSA-2021:3272
Comment 4 Product Security DevOps Team 2021-08-25 15:34:54 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-39156
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