CVE-2020-8133

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file.

Una generación inapropiada de la frase de contraseña para el bloque cifrado en Nextcloud Server versión 19.0.1 permitió a un atacante sobrescribir bloques en un archivo

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

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
2023-06-16 EPSS Updated
2023-11-07 First Exploit
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-347: Improper Verification of Cryptographic Signature
CWE-657: Violation of Secure Design Principles

CAPEC

References (3)

URL	Tag	Source
https://hackerone.com/reports/661051%2C	X_refsource_misc
https://nextcloud.com/security/advisory/?id=NC-SA-2020-038	Broken Link

URL	Date	SRC
https://hackerone.com/reports/661051	2023-11-07

URL	Date	SRC

URL	Date	SRC

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"				19.0.1 Search vendor "Nextcloud" for product "Nextcloud Server" and version "19.0.1"		-		Affected