Vulnerability Name:

CVE-2020-8296 (CCN-197703)

Assigned:2020-10-03
Published:2020-10-03
Updated:2022-01-01
Summary:Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured.
CVSS v3 Severity:6.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.8 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:M/C:C/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Multiple_Instances
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-521
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-8296

Source: XF
Type: UNKNOWN
nextcloud-cve20208296-info-disc(197703)

Source: MISC
Type: Exploit, Third Party Advisory
https://github.com/nextcloud/server/issues/17439

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/nextcloud/server/pull/21037

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://hackerone.com/reports/867164

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2021-eac0e52f88

Source: CCN
Type: NC-SA-2021-006
External storage app saves password for all users in the database

Source: MISC
Type: Vendor Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2021-006

Vulnerable Configuration:Configuration 1:
  • cpe:/a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* (Version < 20.0.0)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:nextcloud:nextcloud_server:19.0.0:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    nextcloud nextcloud server *
    fedoraproject fedora 34
    nextcloud nextcloud server 19.0.0 -