PT-2023-22077 · Nextcloud+2 · Nextcloud Desktop Client+2

Mikaelgundersen · Published 2023-04-04 · Updated 2023-08-30 · CVE-2023-29000

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Desktop Client versions 3.0.0 through 3.6.x

Description The Nextcloud Desktop Client synchronizes files from Nextcloud Server. A malicious server could exploit the client's trust in the server's certificate, leading to the encryption of files with a key known to the attacker.

Recommendations For Nextcloud Desktop Client versions 3.0.0 through 3.6.x, update to version 3.7.0 to resolve the issue.

Exploit

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

ALT-PU-2023-2019

ALT-PU-2023-4584

ALT-PU-2023-5197

CVE-2023-29000

GHSA-H82X-98Q3-7534

Affected Products

Alt Linux

Debian

Nextcloud Desktop Client

References · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29000.json · Exploit
• https://github.com/nextcloud/desktop/pull/4949 · Patch
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-29000 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-29000 · Security Note
• https://osv.dev/vulnerability/CVE-2023-29000 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-29000 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-29000 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-29000 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-29000 · Vendor Advisory
• https://t.me/cibsecurity/61398 · Telegram Post
• https://hackerone.com/reports/1679267 · Note