Vulnerability · Published Dec 22, 2023 · Assigned by GitHub_M
CVE-2023-49791Workflows do not require password confirmation on API level
Medium 5.4
In plain English
A medium-severity improper access control in security-advisories from nextcloud. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Official description
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. In Nextcloud Server prior to versions 26.0.9 and 27.1.4; as well as Nextcloud Enterprise Server prior to versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4; when an attacker manages to get access to an active session of another user via another way, they could delete and modify workflows by sending calls directly to the API bypassing the password confirmation shown in the UI. Nextcloud Server versions 26.0.9 and 27.1.4 and Nextcloud Enterprise Server versions 23.0.12.13, 24.0.12.9, 25.0.13.4, 26.0.9, and 27.1.4 contain a patch for this issue. No known workarounds are available.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| nextcloud | security-advisories | >= 23.0.0, < 23.0.12.13>= 24.0.0, < 24.0.12.9>= 25.0.0, < 25.0.13.4>= 26.0.0, < 26.0.9>= 27.0.0, < 27.1.4 |
Weakness: CWE-284, CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3f8p-6qww-2prr x_refsource_CONFIRM
- https://github.com/nextcloud/server/pull/41520 x_refsource_MISC
- https://hackerone.com/reports/2120667 x_refsource_MISC