Vulnerability Monitor

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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.

Published

2021-06-11T16:15:10.797

Last Modified

2024-11-21T05:50:51.690

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-295
Type: Primary
CWE-295

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	nextcloud	desktop	< 3.1.3	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	debian	debian_linux	11.0	Yes

References

https://github.com/nextcloud/desktop/pull/2926 Patch, Third Party Advisory ([email protected])
https://github.com/nextcloud/desktop/releases/tag/v3.1.3 Release Notes, Third Party Advisory ([email protected])
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5 Third Party Advisory ([email protected])
https://hackerone.com/reports/903424 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://www.debian.org/security/2021/dsa-4974 Third Party Advisory ([email protected])
https://github.com/nextcloud/desktop/pull/2926 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/desktop/releases/tag/v3.1.3 Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://hackerone.com/reports/903424 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2021/dsa-4974 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)