Bug 1584955 (CVE-2016-10555)

Summary:	CVE-2016-10555 nodejs-jwt-simple: Missing algorithm parameter in jwt.js:jwt_decode() can allow attackers to bypass JWT signature verification
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	tchollingsworth
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nodejs-jwt-simple 0.3.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:27:12 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1584956, 1584957
Bug Blocks:

Description Sam Fowler 2018-06-01 03:09:01 UTC

nodejs-jwt-simple before version 0.3.1 allows users to select what algorithm the server will use to verify a provided JWT. A malicious actor can use this behaviour to arbitrarily modify the contents of a JWT while still passing verification. For the common use case of the JWT, the end result is a complete authentication bypass with minimal effort.


External References:

https://nodesecurity.io/advisories/87
https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/


Upstream Fix:

https://github.com/hokaccha/node-jwt-simple/pull/16


Upstream Issue:

https://github.com/hokaccha/node-jwt-simple/issues/14

Comment 1 Sam Fowler 2018-06-01 03:09:21 UTC

Created nodejs-jwt-simple tracking bugs for this issue:

Affects: epel-all [bug 1584957]
Affects: fedora-all [bug 1584956]

Comment 2 Product Security DevOps Team 2019-06-10 10:27:12 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.