PT-2020-19985 · Nextcloud+1 · Nextcloud Server+1

Published 2020-09-11 · Updated 2022-05-24 · CVE-2020-8150

Positive Technologies (AI Summary)

CVSS v3.1

4.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Server version 19.0.1

Description A cryptographic issue allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files. This issue does not specify the estimated number of potentially affected devices worldwide or details about real-world incidents where this issue was exploited.

Recommendations For Nextcloud Server version 19.0.1, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Encryption of Sensitive Data

Weakness Enumeration

CWE-311

CWE-310

Related Identifiers

ALT-PU-2020-3060

CVE-2020-8150

Affected Products

Alt Linux

Nextcloud Server

References · 18

• 🔥 https://hackerone.com/reports/742588 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-8150 · Security Note
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-039 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-8150 · Vendor Advisory
• https://t.me/cvenotify/30634 · Telegram Post
• https://t.me/cibsecurity/16032 · Telegram Post
• https://t.me/cvenotify/7860 · Telegram Post
• https://t.me/cvenotify/7754 · Telegram Post
• https://t.me/cvenotify/5772 · Telegram Post
• http://seclists.org/fulldisclosure/2020/Dec/58 · Note
• https://t.me/ckure/6514 · Telegram Post
• https://t.me/defcon_news/65297 · Telegram Post
• https://t.me/defcon_news/65298 · Telegram Post
• https://t.me/defcon_news/65167 · Telegram Post
• http://seclists.org/fulldisclosure/2020/Dec/55 · Note