Bug 2217313 (CVE-2023-35172)

Summary: CVE-2023-35172 NextCloud: Password reset endpoint is not brute force protected
Product: [Other] Security Response Reporter: Avinash Hanwate <ahanwate>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: NextCloud 25.0.7, NextCloud 26.0.2 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2023-06-26 11:28:28 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2217314, 2217315    
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Description Avinash Hanwate 2023-06-26 04:43:46 UTC 
NextCloud Server and NextCloud Enterprise Server provide file storage for Nextcloud, a self-hosted productivity platform. In NextCloud Server versions 25.0.0 until 25.0.7 and 26.0.0 until 26.0.2 and Nextcloud Enterprise Server versions 21.0.0 until 21.0.9.12, 22.0.0 until 22.2.10.12, 23.0.0 until 23.0.12.7, 24.0.0 until 24.0.12.2, 25.0.0 until 25.0.7, and 26.0.0 until 26.0.2, an attacker can bruteforce the password reset links. Nextcloud Server n 25.0.7 and 26.0.2 and Nextcloud Enterprise Server 21.0.9.12, 22.2.10.12, 23.0.12.7, 24.0.12.2, 25.0.7, and 26.0.2 contain a patch for this issue. No known workarounds are available.

https://github.com/nextcloud/server/pull/38267
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mjf5-p765-qmr6
https://hackerone.com/reports/1987062
Comment 1 Avinash Hanwate 2023-06-26 04:44:09 UTC 
Created nextcloud tracking bugs for this issue:

Affects: epel-all [bug 2217315]
Affects: fedora-all [bug 2217314]
Comment 2 Product Security DevOps Team 2023-06-26 11:28:27 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.