CVE-2022-39339
What it is
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).
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.5% in the next 30 days (EPSS).
- Severity: 4.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-319 · Cleartext transmission
- Record status
- Modified
Affected
- Nextcloud Openid Connect User Backend < 1.2.1
Attack profile CVSS 3.1 · 4.3
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-39339.md and follow it. Check whether this project is affected by CVE-2022-39339. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg
- https://github.com/nextcloud/user_oidc/pull/495
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg
- https://github.com/nextcloud/user_oidc/pull/495
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg
- https://github.com/nextcloud/user_oidc/pull/495
- https://hackerone.com/reports/1687005
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vff-cq8h-chhg
- https://github.com/nextcloud/user_oidc/pull/495
- https://hackerone.com/reports/1687005