Bug 2218764 (CVE-2023-32320) - CVE-2023-32320 nextcloud-server: brute force protection allows to send more requests than intended
Summary: CVE-2023-32320 nextcloud-server: brute force protection allows to send more r...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2023-32320
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2218765 2218767 2218768 2218769 2218770 2218771 2218772 2218773 2218774 2218775 2218777
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-06-30 06:36 UTC by TEJ RATHI
Modified: 2023-07-04 07:04 UTC (History)
0 users

Fixed In Version: nextcloud-server 25.0.7, nextcloud-server 26.0.2
Doc Type: ---
Doc Text:
A vulnerability was discovered in Nextcloud-Server. When multiple requests are sent in parallel, all of them were executed even if the amount of faulty requests succeeded the limit by the time the response is sent to the client. This allowed to send as many requests the server could handle in parallel to bruteforce protected details instead of the configured limit (default 8).
Clone Of:
Environment:
Last Closed: 2023-07-04 07:04:24 UTC
Embargoed:


Attachments (Terms of Use)

Description TEJ RATHI 2023-06-30 06:36:49 UTC
Nextcloud Server is a data storage system for Nextcloud, a self-hosted productivity platform. When multiple requests are sent in parallel, all of them were executed even if the amount of faulty requests succeeded the limit by the time the response was sent to the client. This allowed someone to send as many requests the server could handle in parallel to bruteforce protected details instead of the configured limit, default 8. Nextcloud Server versions 25.0.7 and 26.0.2 and Nextcloud Enterprise Server versions 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7 and 26.0.2 contain patches for this issue.

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qphh-6xh7-vffg
https://github.com/nextcloud/server/pull/38274
https://hackerone.com/reports/1918525

Comment 1 TEJ RATHI 2023-06-30 06:37:11 UTC
Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 2218765]

Comment 2 TEJ RATHI 2023-06-30 06:39:38 UTC
Created nextcloud:23/nextcloud tracking bugs for this issue:

Affects: epel-all [bug 2218767]
Affects: fedora-all [bug 2218770]


Created nextcloud:24/nextcloud tracking bugs for this issue:

Affects: epel-all [bug 2218768]
Affects: fedora-all [bug 2218771]


Created nextcloud:nextcloud-18/nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 2218772]


Created nextcloud:nextcloud-19/nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 2218773]


Created nextcloud:nextcloud-21/nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 2218774]


Created nextcloud:nextcloud-22/nextcloud tracking bugs for this issue:

Affects: epel-all [bug 2218769]
Affects: fedora-all [bug 2218775]


Created nextcloud:nextcloud-stable/nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 2218777]

Comment 3 Product Security DevOps Team 2023-07-04 07:04:22 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.


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