CVE-2022-39339

Cleartext Transmission of Sensitive Information in user_oidc

Description

user_oidc is an OpenID Connect user backend for Nextcloud. In versions prior to 1.2.1 sensitive information such as the OIDC client credentials and tokens are sent in plain text of HTTP without TLS. Any malicious actor with access to monitor user traffic may have been able to compromise account security. This issue has been addressed in in user_oidc v1.2.1. Users are advised to upgrade. Users unable to upgrade may use https to access Nextcloud. Set an HTTPS discovery URL in the provider settings (in Nextcloud OIDC admin settings).

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory hackerone.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg third party advisory patch
https://github.com/nextcloud/user_oidc/pull/495 third party advisory patch
https://hackerone.com/reports/1687005 third party advisory permissions required

Frequently Asked Questions

What is the severity of CVE-2022-39339?
CVE-2022-39339 has been scored as a medium severity vulnerability.
How to fix CVE-2022-39339?
To fix CVE-2022-39339, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-39339 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39339 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-39339?
CVE-2022-39339 affects nextcloud security-advisories.
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