Bug 1981816 (CVE-2021-32678) - CVE-2021-32678 nextcloud: ratelimit not applied on OCS API responses
Summary: CVE-2021-32678 nextcloud: ratelimit not applied on OCS API responses
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-32678
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1981817
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-07-13 13:36 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-07-13 21:55 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2021-07-13 21:55:04 UTC
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Description Guilherme de Almeida Suckevicz 2021-07-13 13:36:08 UTC 
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.0.11, and 21.0.3, ratelimits are not applied to OCS API responses. This affects any OCS API controller (`OCSController`) using the `@BruteForceProtection` annotation. Risk depends on the installed applications on the Nextcloud Server, but could range from bypassing authentication ratelimits or spamming other Nextcloud users. The vulnerability is patched in versions 19.0.13, 20.0.11, and 21.0.3. No workarounds aside from upgrading are known to exist.

Reference:
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-48rx-3gmf-g74j
Comment 1 Guilherme de Almeida Suckevicz 2021-07-13 13:36:41 UTC 
Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 1981817]
Comment 2 Product Security DevOps Team 2021-07-13 21:55:04 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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