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CVE-2021-22895

Date: June 11, 2021

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.

Language: C++

Severity Score

5.9

Related Resources (9)

Url: https://www.debian.org/security/2021/dsa-4974

Url: https://security-tracker.debian.org/tracker/CVE-2021-22895

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-22895

Url: https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5

Url: https://github.com/nextcloud/desktop/pull/2926

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-22895

Url: https://github.com/nextcloud/desktop/releases/tag/v3.1.3

Url: https://hackerone.com/reports/903424

Url: https://www.mend.io/vulnerability-database/CVE-2021-22895

Severity Score

5.9

Weakness Type (CWE)

Improper Certificate Validation

CWE-295

CVSS v3.1

Base Score:	5.9
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	HIGH
Availability (A):	NONE

CVSS v2

Base Score:	4.3
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	PARTIAL
Availability (A):	NONE
Additional information:

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