Bug 2181075 (CVE-2023-25820)

Summary:	CVE-2023-25820 nextcloud: Missing brute force protection on password confirmation modal
Product:	[Other] Security Response	Reporter:	Sandipan Roy <saroy>
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:	---
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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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Last Closed:	2023-03-23 11:50:38 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2181076, 2181077
Bug Blocks:

Description Sandipan Roy 2023-03-23 04:34:33 UTC

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform, and Nextcloud Enterprise Server is the enterprise version of the file server software. In Nextcloud Server versions 25.0.x prior to 25.0.5 and versions 24.0.x prior to 24.0.10 as well as Nextcloud Enterprise Server versions 25.0.x prior to 25.0.4, 24.0.x prior to 24.0.10, 23.0.x prior to 23.0.12.5, 22.x prior to 22.2.0.10, and 21.x prior to 21.0.9.10, when an attacker gets access to an already logged in user session they can then brute force the password on the confirmation endpoint. Nextcloud Server should upgraded to 24.0.10 or 25.0.4 and Nextcloud Enterprise Server should upgraded to 21.0.9.10, 22.2.10.10, 23.0.12.5, 24.0.10, or 25.0.4 to receive a patch. No known workarounds are available.

https://hackerone.com/reports/1842114
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-36g6-wjx2-333x
https://github.com/nextcloud/server/pull/36489

Comment 1 Sandipan Roy 2023-03-23 04:34:56 UTC

Created nextcloud tracking bugs for this issue:

Affects: epel-8 [bug 2181077]
Affects: fedora-all [bug 2181076]

Comment 2 Product Security DevOps Team 2023-03-23 11:50:36 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.