Vulnerability Name:

CVE-2019-15612 (CCN-175792)

Assigned:2019-04-01
Published:2019-04-01
Updated:2020-03-24
Summary:A bug in Nextcloud Server 15.0.2 causes pending 2FA logins to not be correctly expired when the password of the user is reset.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
5.6 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Physical
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:3.2 Low (CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
5.5 Medium (CCN CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-384
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-15612

Source: XF
Type: UNKNOWN
nextcloud-cve201915612-sec-bypass(175792)

Source: MISC
Type: Permissions Required, Third Party Advisory
https://hackerone.com/reports/486693

Source: CCN
Type: NC-SA-2020-001
2FA sessions not properly expired on password change

Source: MISC
Type: Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-001

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2019-15612

Vulnerable Configuration:Configuration 1:
  • cpe:/a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* (Version >= 13.0.0 and < 13.0.11)
  • OR cpe:/a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* (Version >= 14.0.0 and < 14.0.7)
  • OR cpe:/a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* (Version >= 15.0.0 and < 15.0.3)

    • Configuration CCN 1:
  • cpe:/a:nextcloud:nextcloud_server:15.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:nextcloud:nextcloud_server:14.0.6:*:*:*:*:*:*:*
  • OR cpe:/a:nextcloud:nextcloud_server:13.0.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    nextcloud nextcloud server *
    nextcloud nextcloud server *
    nextcloud nextcloud server *
    nextcloud nextcloud server 15.0.2
    nextcloud nextcloud server 14.0.6
    nextcloud nextcloud server 13.0.10