Bug 1886554 (CVE-2020-8264)

Summary:	CVE-2020-8264 rubygem-actionpack: possible XSS vulnerability in Action Pack in development mode
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	akarol, bbuckingham, bcourt, bkearney, bmidwood, btotty, dmetzger, gmccullo, gtanzill, hhudgeon, jaruga, jfrey, jhardy, lzap, mmccune, mo, nmoumoul, obarenbo, pvalena, rchan, rjerrido, roliveri, ruby-packagers-sig, simaishi, smallamp, sokeeffe, sseago, strzibny, vondruch, xlecauch
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in rubygem-actionpack. A XSS vulnerability in Action Pack's Actionable Exceptions middleware while the application server is in development mode is possible. The highest threat from this vulnerability is to data confidentiality and integrity.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-10-09 20:21:12 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:
Bug Blocks:	1886555

Description Guilherme de Almeida Suckevicz 2020-10-08 18:22:44 UTC

There is a possible XSS vulnerability in Action Pack while the application server is in development mode. This vulnerability is in the Actionable Exceptions middleware.

Reference:
https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJ

Comment 3 Yadnyawalk Tale 2020-10-09 18:20:16 UTC

Statement:

Red Hat products ships rubygem-actionpack, however, those are supposed to be run in production mode. This issue only impacts development mode, therefore mentioned products are not affected by this flaw.

Comment 4 Yadnyawalk Tale 2020-10-09 18:20:20 UTC

External References:

https://groups.google.com/g/rubyonrails-security/c/yQzUVfv42jk/m/oJWw-xhNAQAJ

Comment 5 Product Security DevOps Team 2020-10-09 20:21:12 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-2020-8264