Bug 1412376 – CVE-2017-2585 keycloak: timing attack in JWS signature verification

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Bug 1412376 - (CVE-2017-2585) CVE-2017-2585 keycloak: timing attack in JWS signature verification

Summary:	CVE-2017-2585 keycloak: timing attack in JWS signature verification

Status:	NEW

Aliases:	CVE-2017-2585

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20170404,repor...
Keywords:	Security

Depends On:
Blocks:	1412373 1438536
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Reported:	2017-01-11 16:40 EST by Chess Hazlett
Modified:	2018-03-12 02:30 EDT (History)
CC List:	11 users (show)

See Also:
Fixed In Version:	keycloak 2.5.1
Doc Type:	If docs needed, set a value
Doc Text:	It was found that keycloak's implementation of HMAC verification for JWS tokens uses a method that runs in non-constant time, potentially leaving the application vulnerable to timing attacks.
Story Points:	---
Clone Of:
Environment:
Last Closed:
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:0872	normal	SHIPPED_LIVE	Moderate: Red Hat Single Sign-On 7.1 update on RHEL 6	2017-04-04 17:26:43 EDT
Red Hat Product Errata	RHSA-2017:0873	normal	SHIPPED_LIVE	Moderate: Red Hat Single Sign-On 7.1 update on RHEL 7	2017-04-04 17:26:10 EDT
Red Hat Product Errata	RHSA-2017:0876	normal	SHIPPED_LIVE	Moderate: Red Hat Single Sign-On 7.1 update	2017-04-04 17:15:55 EDT

Groups: None (edit)

Description Chess Hazlett 2017-01-11 16:40:33 EST

Keycloak implented HMAC verification using a comparison method that does not operate in constant time. This potentially leaves the application open to timing attacks.

Comment 2 Chess Hazlett 2017-01-11 16:51:33 EST

Acknowledgments:

Name: Richard Kettelerij (Mindloops)

Comment 3 errata-xmlrpc 2017-04-04 13:16:27 EDT

This issue has been addressed in the following products:



Via RHSA-2017:0876 https://access.redhat.com/errata/RHSA-2017:0876

Comment 4 errata-xmlrpc 2017-04-04 13:27:38 EDT

This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.1 for RHEL 7

Via RHSA-2017:0873 https://access.redhat.com/errata/RHSA-2017:0873

Comment 5 errata-xmlrpc 2017-04-04 13:28:01 EDT

This issue has been addressed in the following products:

  Red Hat Single Sign-On 7.1 for RHEL 6

Via RHSA-2017:0872 https://access.redhat.com/errata/RHSA-2017:0872

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