CVE-2018-3761

CVSS V2 Medium 5.8 CVSS V3 High 8.1
Description
Nextcloud Server before 12.0.8 and 13.0.3 suffer from improper authentication on the OAuth2 token endpoint. Missing checks potentially allowed handing out new tokens in case the OAuth2 client was partly compromised.
Overview
  • CVE ID
  • CVE-2018-3761
  • Assigner
  • support@hackerone.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-07-05T16:29:00
  • Last Modified Date
  • 2023-02-28T17:51:33
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* 1 OR 12.0.8
cpe:2.3:a:nextcloud:nextcloud_server:13.0.3:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 8.1
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 5.2
References
Reference URL Reference Tags
https://nextcloud.com/security/advisory/?id=nc-sa-2018-003 Vendor Advisory
https://hackerone.com/reports/343111 Third Party Advisory
History
Created Old Value New Value Data Type Notes
2022-05-10 17:04:06 Added to TrackCVE
2022-12-03 09:05:43 cve-assignments@hackerone.com support@hackerone.com CVE Assigner updated
2022-12-03 09:05:43 2018-07-05T16:29Z 2018-07-05T16:29:00 CVE Published Date updated
2022-12-03 09:05:43 2019-10-09T23:40:35 CVE Modified Date updated
2022-12-03 09:05:43 Modified Vulnerability Status updated
2023-01-27 23:07:51 Modified Undergoing Analysis Vulnerability Status updated
2023-02-28 18:07:39 2023-02-28T17:51:33 CVE Modified Date updated
2023-02-28 18:07:39 Undergoing Analysis Analyzed Vulnerability Status updated