Bug 1619892 (CVE-2018-3775)

Summary:	CVE-2018-3775 nextcloud: Improper authentication allows attackers with user credentials to bypass 2FA
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	james.hogarth
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	nextcloud 12.0.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:36:09 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:	1619893, 1619894
Bug Blocks:

Description Sam Fowler 2018-08-22 03:00:16 UTC

Nextcloud Server before version 12.0.3 is vulnerable to improper authentication of the second factor challenge which allows an attacker with access to user credentials to bypass the second factor validation completely.


External References:

https://nextcloud.com/security/advisory/?id=NC-SA-2018-007
https://hackerone.com/reports/248656

Comment 1 Sam Fowler 2018-08-22 03:00:44 UTC

Created nextcloud tracking bugs for this issue:

Affects: epel-7 [bug 1619894]
Affects: fedora-all [bug 1619893]

Comment 2 Product Security DevOps Team 2019-06-10 10:36:09 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.