CVE-2020-8150

Severity Score

4.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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

Un problema criptográfico en Nextcloud Server versión 19.0.1, permitió a un atacante degradar el esquema de cifrado y romper la integridad de los archivos cifrados

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-28 CVE Reserved
2020-11-09 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-310: Cryptographic Issues
CWE-311: Missing Encryption of Sensitive Data

CAPEC

References (5)

URL	Tag	Source
http://seclists.org/fulldisclosure/2020/Dec/55	Mailing List
http://seclists.org/fulldisclosure/2020/Dec/57	Mailing List
http://seclists.org/fulldisclosure/2020/Dec/58	Mailing List

URL	Date	SRC
https://hackerone.com/reports/742588	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://nextcloud.com/security/advisory/?id=NC-SA-2020-039	2022-05-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nextcloud Search vendor "Nextcloud"		Nextcloud Server Search vendor "Nextcloud" for product "Nextcloud Server"				< 19.0.2 Search vendor "Nextcloud" for product "Nextcloud Server" and version " < 19.0.2"		-		Affected