CVE-2020-8227

CVSS V2 High 7.1 CVSS V3 Medium 6.8
Description
Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.
Overview
  • CVE ID
  • CVE-2020-8227
  • Assigner
  • support@hackerone.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-08-21T21:15:11
  • Last Modified Date
  • 2022-09-27T16:01:31
Weakness Enumerations
CWE URL
CWE-22 http://cwe.mitre.org/data/definitions/22.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:* 1 OR 2.6.5
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:H/Au:S/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • HIGH
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.1
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 6.8
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://hackerone.com/reports/590319 Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-032 Exploit Vendor Advisory
https://security.gentoo.org/glsa/202009-09
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-8227
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8227
History
Created Old Value New Value Data Type Notes
2022-05-10 16:24:30 Added to TrackCVE
2022-12-04 21:24:40 cve-assignments@hackerone.com support@hackerone.com CVE Assigner updated
2022-12-04 21:24:40 2020-08-21T21:15Z 2020-08-21T21:15:11 CVE Published Date updated
2022-12-04 21:24:40 2022-09-27T16:01:31 CVE Modified Date updated
2022-12-04 21:24:40 Analyzed Vulnerability Status updated