PT-2023-25183 · Nextcloud · Nextcloud End-To-End Encryption

Rullzer · Published 2023-06-23 · Updated 2023-07-05 · CVE-2023-35173

Positive Technologies (AI Summary)

CVSS v3.1

5.7

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Nextcloud End-to-end encryption app versions prior to 1.12.4

Description The Nextcloud End-to-end encryption app provides APIs for implementing End-to-End encryption on the client side. An issue exists where providing an invalid meta data file can make previously dropped files inaccessible.

Recommendations For versions prior to 1.12.4, upgrade to version 1.12.4 to resolve the issue.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2023-35173

GHSA-X7C7-V5R3-MG37

Affected Products

Nextcloud End-To-End Encryption

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/35xxx/CVE-2023-35173.json · Exploit
• https://github.com/nextcloud/end_to_end_encryption/pull/435 · Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x7c7-v5r3-mg37 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-35173 · Security Note
• https://osv.dev/vulnerability/CVE-2023-35173 · Vendor Advisory
• https://t.me/cvenotify/53004 · Telegram Post
• https://hackerone.com/reports/1914115 · Note
• https://t.me/cvenotify/52988 · Telegram Post