Bug 2217310 (CVE-2023-35171)

Summary:	CVE-2023-35171 NextCloud: Open redirect on "Unsupported browser" warning
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	NextCloud 26.0.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-06-26 11:27:31 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:	2217311, 2217312
Bug Blocks:

Description Avinash Hanwate 2023-06-26 04:41:54 UTC

NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. Starting in version 26.0.0 and prior to version 26.0.2, an attacker could supply a URL that redirects an unsuspecting victim from a legitimate domain to an attacker's site. Nextcloud Server and Nextcloud Enterprise Server 26.0.2 contain a patch for this issue. No known workarounds are available.

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h353-vvwv-j2r4
https://github.com/nextcloud/server/pull/38194
https://hackerone.com/reports/1977222

Comment 1 Avinash Hanwate 2023-06-26 04:42:19 UTC

Created nextcloud tracking bugs for this issue:

Affects: epel-all [bug 2217312]
Affects: fedora-all [bug 2217311]

Comment 2 Product Security DevOps Team 2023-06-26 11:27:29 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.