Vulnerability identifier: #VU69630

Vulnerability risk: Low

CVSSv3.1: 3.1 [CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-39339

CWE-ID: CWE-319

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
user_oidc
Web applications / Modules and components for CMS

Vendor: Nextcloud

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information. A remote administrator can gain access to sensitive data.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

user_oidc: 0.1.0 - 1.2.0

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External links
http://hackerone.com/reports/1687005
http://github.com/nextcloud/user_oidc/pull/495
http://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.