CVE-2024-52510

Nextcloud Desktop client behaves incorrectly if the initial end-to-end-encryption signature is empty

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer. The Desktop client did not stop with an error but allowed by-passing the signature validation, if a manipulated server sends an empty initial signature. It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.

Affected

nextcloud · security-advisories

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 GITHUB

4.2 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N

EPSS

0.74% chance of exploitation in the next 30 days, 54th percentile

Published

2024-11-15

Proof-of-concept exploits (1)

• d-xuan/CVE-2024-525102★ · 2024-07-11

Security advisories

• nextcloud/security-advisories/security/advisories/GHSA-r4qc-m9mj-452v
• nextcloud/desktop/pull/7333
• https://hackerone.com/reports/2597504

References

• CVE Record
• NVD entry