CVE-2021-32727 (GCVE-0-2021-32727)

Vulnerability from cvelistv5 – Published: 2021-07-12 20:40 – Updated: 2024-08-03 23:33
VLAI
Title
End-to-end encryption device setup did not verify public key
Summary
Nextcloud Android Client is the Android client for Nextcloud. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.16.1, the Nextcloud Android client skipped a step that involved the client checking if a private key belonged to a previously downloaded public certificate. If the Nextcloud instance served a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. The vulnerability is patched in version 3.16.1. As a workaround, do not add additional end-to-end encrypted devices to a user account.
Severity
5.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7734 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
nextcloud security-advisories Affected: < 3.16.1
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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