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HackeroneCVE-2020-8139

HistoryMar 20, 2020 - 9:15 p.m.

CVE-2020-8139

2020-03-2021:15:17

CWE-862

CWE-284

hackerone

web.nvd.nist.gov

111

nvd

cve-2020-8139

nextcloud

server

access control

security vulnerability

hide-download

url

download

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

AI Score

6.4

Confidence

High

EPSS

0.001

Percentile

40.0%

JSON

A missing access control check in Nextcloud Server < 18.0.1, < 17.0.4, and < 16.0.9 causes hide-download shares to be downloadable when appending /download to the URL.

Affected configurations

Nvd

Vulners

Node

nextcloudnextcloud_serverRange16.0.0–16.0.9

nextcloudnextcloud_serverRange17.0.0–17.0.4

nextcloudnextcloud_serverRange18.0.0–18.0.1

Node

fedoraprojectfedoraMatch32

VendorProductVersionCPE
nextcloudnextcloud_server*cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
fedoraprojectfedora32cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
nextcloud	nextcloud_server	*	cpe:2.3:a:nextcloud:nextcloud_server::::::::
fedoraproject	fedora	32	cpe:2.3:o:fedoraproject:fedora:32:::::::*

CNA Affected

[
  {
    "product": "Nextcloud Server",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Fixed in 18.0.1, 17.0.4, and 16.0.9"
      }
    ]
  }
]