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CVE-2020-8150

Good to know:

Date: November 9, 2020

A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.

Language: PHP

Severity Score

4.1

Related Resources (7)

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-8150

Url: https://hackerone.com/reports/742588

Url: http://seclists.org/fulldisclosure/2020/Dec/55

Url: https://nextcloud.com/security/advisory/?id=NC-SA-2020-039

Url: http://seclists.org/fulldisclosure/2020/Dec/58

Url: http://seclists.org/fulldisclosure/2020/Dec/57

Url: https://www.mend.io/vulnerability-database/CVE-2020-8150

Severity Score

4.1

Weakness Type (CWE)

Cryptographic Issues

CWE-310

Missing Encryption of Sensitive Data

CWE-311

Top Fix

Upgrade Version

Upgrade to version v20.0.0RC1

CVSS v3.1

Base Score:	4.1
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	HIGH
Privileges Required (PR):	HIGH
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	HIGH
Availability (A):	NONE

CVSS v2

Base Score:	1.9
Access Vector (AV):	LOCAL
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

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