CVE-2021-32689 — Sensitive Information Exposure in Security-advisories

CWE-200 — Sensitive Information ExposureCWE-708 — Incorrect Ownership Assignment2 documents2 sources
Severity
6.5MEDIUMNVD
CNA8.1
EPSS
0.3%
top 50.88%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud Security-advisoriesNextcloud Talk
Timeline
PublishedJul 12

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

▶NVDnextcloud/talk< 11.2.2
▶CVEListV5nextcloud/security-advisories< 11.2.2

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

1
CVEList
Nextcloud Talk not properly disassociating users from chats after account deletion↗2021-07-12
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CVE-2021-32689 — Sensitive Information Exposure | cvebase