Bug 1988984 (CVE-2021-32741) - CVE-2021-32741 nextcloud: ratelimiting on the public share link mount endpoint allows attacker tp enumerate share tokens
Summary: CVE-2021-32741 nextcloud: ratelimiting on the public share link mount endpoin...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-32741
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1988985
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-08-02 08:36 UTC by Dhananjay Arunesh
Modified: 2021-08-02 13:06 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2021-08-02 13:06:54 UTC


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Description Dhananjay Arunesh 2021-08-02 08:36:24 UTC
Nextcloud Server is a Nextcloud package that handles data storage. In versions
prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the
public share link mount endpoint. This may have allowed an attacker to enumerate
potentially valid share tokens. The issue was fixed in versions 19.0.13,
20.0.11, and 21.0.3. There are no known workarounds.

References:
https://github.com/nextcloud/server/pull/26958
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-crvj-vmf7-xrvr

Comment 1 Dhananjay Arunesh 2021-08-02 08:36:43 UTC
Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 1988985]

Comment 2 Product Security DevOps Team 2021-08-02 13:06:54 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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