Bug 2184163 (CVE-2023-28834)

Summary:	CVE-2023-28834 nextcloud: Full path of data directory exposed to users
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2023-04-03 22:52:50 UTC	Type:	---
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2184164, 2184165
Bug Blocks:

Description Pedro Sampaio 2023-04-03 19:13:13 UTC

Nextcloud Server is an open source personal cloud server. Nextcloud Server 24.0.0 until 24.0.6 and 25.0.0 until 25.0.4, as well as Nextcloud Enterprise Server 23.0.0 until 23.0.11, 24.0.0 until 24.0.6, and 25.0.0 until 25.0.4, have an information disclosure vulnerability. A user was able to get the full data directory path of the Nextcloud server from an API endpoint. By itself this information is not problematic as it can also be guessed for most common setups, but it could speed up other unknown attacks in the future if the information is known. Nextcloud Server 24.0.6 and 25.0.4 and Nextcloud Enterprise Server 23.0.11, 24.0.6, and 25.0.4 contain patches for this issue. There are no known workarounds.

https://github.com/nextcloud/server/issues/33883
https://hackerone.com/reports/1690510
https://github.com/nextcloud/server/pull/36094
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv

Comment 1 Pedro Sampaio 2023-04-03 19:13:30 UTC

Created nextcloud tracking bugs for this issue:

Affects: epel-8 [bug 2184165]
Affects: fedora-all [bug 2184164]

Comment 2 Product Security DevOps Team 2023-04-03 22:52:48 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.