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CVE-2021-32689
HIGH8.1
Description
Nextcloud Talk is a fully on-premises audio/video and chat communication service. In versions prior to 11.2.2, if a user was able to reuse an earlier used username, they could get access to any chat message sent to the previous user with this username. The issue was patched in versions 11.2.2 and 11.3.0. As a workaround, don't allow users to choose usernames themselves. This is the default behaviour of Nextcloud, but some user providers may allow doing so.
CVE Details
CVSS v3.1 Score8.1
SeverityHIGH
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
Published7/12/2021
Last Modified11/21/2024
Sourcenvd
Honeypot Sightings0
Affected Products
nextcloud:talk
Weaknesses (CWE)
CWE-200CWE-708
References
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xv6f-344w-895c(security-advisories@github.com)
https://github.com/nextcloud/spreed/pull/5633(security-advisories@github.com)
https://github.com/nextcloud/spreed/releases/tag/v11.2.2(security-advisories@github.com)
https://github.com/nextcloud/spreed/releases/tag/v11.3.0(security-advisories@github.com)
https://hackerone.com/reports/1200700(security-advisories@github.com)
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-xv6f-344w-895c(af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/spreed/pull/5633(af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/spreed/releases/tag/v11.2.2(af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/spreed/releases/tag/v11.3.0(af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/1200700(af854a3a-2127-422b-91ae-364da2661108)
IOC Correlations
No correlations recorded
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