Vulnerability CVE-2021-32725

Vulnerability Name:

CVE-2021-32725 (CCN-205235)

Assigned:

2021-07-12

Published:

2021-07-12

Updated:

2022-10-26

Summary:

Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, default share permissions were not being respected for federated reshares of files and folders. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.

CVSS v3 Severity:

5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-277

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2021-32725

Source: XF
Type: UNKNOWN
nextcloud-cve202132725-info-disc(205235)

Source: CCN
Type: Nextcloud GIT Repository
Default share permissions not respected for federated reshares

Source: CONFIRM
Type: Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6f6v-h9x9-jj4v

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/nextcloud/server/pull/26946

Source: MISC
Type: Permissions Required
https://hackerone.com/reports/1178320

Source: GENTOO
Type: Third Party Advisory
GLSA-202208-17

Vulnerable Configuration:

Configuration 1:

cpe:/a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* (Version >= 21.0.0 and < 21.0.3)

OR cpe:/a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* (Version >= 20.0.0 and < 20.0.11)

OR cpe:/a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* (Version < 19.0.13)

Configuration CCN 1:

cpe:/a:nextcloud:nextcloud_server:20.0.0:-:*:*:*:*:*:*

OR cpe:/a:nextcloud:nextcloud_server:19.0.0:-:*:*:*:*:*:*

OR cpe:/a:nextcloud:nextcloud_server:21.0.0:-:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:93630	P	(Important)	2022-07-21
oval:org.opensuse.security:def:100343	P	(Important)	2021-10-26
oval:org.opensuse.security:def:110978	P	Security update for nextcloud (Important)	2021-07-20
oval:org.opensuse.security:def:11104	P	Security update for nextcloud (Important)	2021-07-20
oval:org.opensuse.security:def:103101	P	Security update for nextcloud (Important)	2021-07-20
oval:org.opensuse.security:def:111486	P	Security update for nextcloud (Important)	2021-07-20
oval:org.opensuse.security:def:109758	P	Security update for nextcloud (Important)	2021-07-20
oval:org.opensuse.security:def:96411	P	Security update for nextcloud (Important)	2021-07-20
oval:org.opensuse.security:def:35508	P	Security update for nextcloud (Important)	2021-07-20

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