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OpenAdvisories
Medium · 4.2 Public exploit CVE-2024-52510 EUVD-2024-45924

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

Published Nov 15, 2024 · Updated Nov 15, 2024 · Assigned by GitHub_M

Vendor: Nextcloud Product: security-advisories Package: nextcloud-desktop Package: nextcloud-desktop Ecosystem: Debian Ecosystem: Ubuntu

Description

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 products

VendorProductAffectedFixed
nextcloud security-advisories >= 3.0.0, < 3.14.2 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 nextcloud-desktop 3.15.0-1 —
Debian 13 nextcloud-desktop 3.15.0-1 —
Debian 12 nextcloud-desktop No fix yet —

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 26.10 nextcloud-desktop No fix yet —
Ubuntu 26.04 LTS nextcloud-desktop No fix yet —
Ubuntu 25.10 nextcloud-desktop No fix yet —
Ubuntu 24.04 LTS nextcloud-desktop No fix yet —
Ubuntu 22.04 LTS nextcloud-desktop No fix yet —
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS nextcloud-desktop No fix yet —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • d-xuan/CVE-2024-52510 ★ 2 · Jul 4, 2024

    CVE-2024-52510 - Confidentiality Break in Nextcloud End to End Encryption

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 1

References