CVE-2021-22895

Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the "Register with a Provider" flow.

CVSS v3.0 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/nextcloud/desktop/releases/tag/v3.1.3	Release Notes Third Party Advisory
https://hackerone.com/reports/903424	Exploit Issue Tracking Third Party Advisory
https://github.com/nextcloud/desktop/pull/2926	Patch Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5	Third Party Advisory
https://www.debian.org/security/2021/dsa-4974	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*

Information

Published : 2021-06-11 09:15

Updated : 2021-12-02 13:19

NVD link : CVE-2021-22895

Mitre link : CVE-2021-22895

JSON object : View

CWE

CWE-295

Improper Certificate Validation

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Products Affected

debian

debian_linux

nextcloud

desktop

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