Bug 1838533 (CVE-2020-8139)

Summary:	CVE-2020-8139 nextcloud: hide-download shares to be downloadable when appending /download to the URL
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ichavero, james.hogarth
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-28 05:26:33 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:	1838534, 1838535, 1838536
Bug Blocks:

Description Marian Rehak 2020-05-21 10:34:47 UTC

A missing access control check in Nextcloud Server < 18.0.1, < 17.0.4, and < 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL.

Upstream Advisory:

https://nextcloud.com/security/advisory/?id=NC-SA-2020-015

Comment 1 Marian Rehak 2020-05-21 10:35:25 UTC

Created nextcloud tracking bugs for this issue:

Affects: epel-7 [bug 1838536]
Affects: fedora-30 [bug 1838534]
Affects: fedora-31 [bug 1838535]