CVE-2024-52510
Published: 15 November 2024
Summary
CVE-2024-52510 is a medium-severity Improper Certificate Validation (CWE-295) vulnerability in Nextcloud Desktop. Its CVSS base score is 4.2 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Stealth (T1211); ranked in the top 33.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-45924
Vulnerability details
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.…
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It is recommended that the Nextcloud Desktop client is upgraded to 3.14.2 or later.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability enables bypassing end-to-end encryption signature validation in the Nextcloud Desktop Client when a manipulated server sends an empty initial signature, facilitating exploitation for defense evasion (T1211) and subverting trust controls via improper certificate/signature validation (T1553).
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
When certificates are used to establish component provenance, the control requires correct certificate validation procedures.
Mandates approved trust anchors and issuance policies, directly preventing acceptance of unvalidated or untrusted certificates.
Correct system time is required for proper enforcement of certificate notBefore/notAfter dates and time-based revocation checks.