# CVE-2020-9543: OpenStack Manila Unprivileged users can retrieve, use and manipulate share networks

> Attackers can view, modify, delete, or create shared file system resources belonging to other users due to improper authorization checks.

- **Severity:** High 8.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 12 Mar 2020
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2020-9543, GHSA-jx7v-gmqc-6xrj, PYSEC-2020-63, RHSA-2020:1326, RHSA-2020:2165, RHSA-2020:2729, SUSE-SU-2020:0659-1, SUSE-SU-2020:0660-1, UBUNTU-CVE-2020-9543

## What is CVE-2020-9543?

CVE-2020-9543 is a high-severity missing authorization vulnerability in n/a, published on 12 Mar 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

OpenStack Manila <7.4.1, >=8.0.0 <8.1.1, and >=9.0.0 <9.1.1 allows attackers to view, update, delete, or share resources that do not belong to them, because of a context-free lookup of a UUID. Attackers may also create resources, such as shared file systems and groups of shares on such share networks.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2020-9543?

7 open source packages ship an affected version, including manila. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `manila` | PyPI | All versions | 7.4.1, 8.1.1, 9.1.1 |
| `manila` | PyPI | All versions | 7.4.1 |
| `manila` | PyPI | All versions | 7.4.1 |
| `manila` | PyPI | From 8.0.0 | 8.1.1 |
| `manila` | PyPI | From 8.0.0 | 8.1.1 |
| `manila` | PyPI | From 9.0.0 | 9.1.1 |
| `manila` | PyPI | From 9.0.0 | 9.1.1 |
| `openstack-manila` | Red Hat:openstack:13::el7 | All versions | 1:6.3.2-3.el7ost |
| `openstack-manila-share` | Red Hat:openstack:13::el7 | All versions | 1:6.3.2-3.el7ost |
| `python-manila` | Red Hat:openstack:13::el7 | All versions | 1:6.3.2-3.el7ost |
| `python-manila-tests` | Red Hat:openstack:13::el7 | All versions | 1:6.3.2-3.el7ost |
| `openstack-manila` | Red Hat:openstack:15::el8 | All versions | 1:8.1.1-0.20200311070441.17b29e2.el8ost |
| `openstack-manila-share` | Red Hat:openstack:15::el8 | All versions | 1:8.1.1-0.20200311070441.17b29e2.el8ost |
| `python3-manila` | Red Hat:openstack:15::el8 | All versions | 1:8.1.1-0.20200311070441.17b29e2.el8ost |
| `openstack-manila` | Red Hat:openstack:16::el8 | All versions | 1:9.1.2-0.20200405045746.f071a43.el8ost |
| `openstack-manila-share` | Red Hat:openstack:16::el8 | All versions | 1:9.1.2-0.20200405045746.f071a43.el8ost |
| `python3-manila` | Red Hat:openstack:16::el8 | All versions | 1:9.1.2-0.20200405045746.f071a43.el8ost |
| `openstack-manila` | SUSE:HPE Helion OpenStack 8 | All versions | 5.1.1~dev2-3.23.1 |
| `openstack-manila-doc` | SUSE:HPE Helion OpenStack 8 | All versions | 5.1.1~dev2-3.23.1 |
| `venv-openstack-manila` | SUSE:HPE Helion OpenStack 8 | All versions | 5.1.1~dev2-12.27.1 |
| `openstack-manila` | SUSE:OpenStack Cloud 8 | All versions | 5.1.1~dev2-3.23.1 |
| `openstack-manila-doc` | SUSE:OpenStack Cloud 8 | All versions | 5.1.1~dev2-3.23.1 |
| `venv-openstack-manila` | SUSE:OpenStack Cloud 8 | All versions | 5.1.1~dev2-12.27.1 |
| `openstack-manila` | SUSE:OpenStack Cloud 9 | All versions | 7.3.1~dev15-4.18.2 |
| `venv-openstack-manila` | SUSE:OpenStack Cloud 9 | All versions | 7.3.1~dev15-3.17.3 |
| `openstack-manila` | SUSE:OpenStack Cloud Crowbar 8 | All versions | 5.1.1~dev2-3.23.1 |
| `openstack-manila-doc` | SUSE:OpenStack Cloud Crowbar 8 | All versions | 5.1.1~dev2-3.23.1 |
| `openstack-manila` | SUSE:OpenStack Cloud Crowbar 9 | All versions | 7.3.1~dev15-4.18.2 |

Products: Openstack Manila.

## How do I fix CVE-2020-9543?

Upgrade manila to a fixed version for your release line: 7.4.1, 8.1.1 or 9.1.1.

## Is CVE-2020-9543 being exploited?

There is no known exploitation of CVE-2020-9543 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2016-6519](https://insights.sbomify.com/CVE-2016-6519/): Openstack Manila Persistent XSS in Metadata field (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9543 and fix it if it is affected.

What it is: CVE-2020-9543 is a high-severity missing authorization vulnerability in n/a, published on 12 Mar 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-9543 in the wild and no public exploit code.

Affected packages and fixed versions:
- manila (PyPI): affected all versions; fixed in 7.4.1, 8.1.1, 9.1.1
- manila (PyPI): affected all versions; fixed in 7.4.1
- manila (PyPI): affected all versions; fixed in 7.4.1
- manila (PyPI): affected from 8.0.0; fixed in 8.1.1
- manila (PyPI): affected from 8.0.0; fixed in 8.1.1
- manila (PyPI): affected from 9.0.0; fixed in 9.1.1
- manila (PyPI): affected from 9.0.0; fixed in 9.1.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-9543/ (Markdown: https://insights.sbomify.com/CVE-2020-9543/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9543
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9543
- OSV: https://osv.dev/vulnerability/CVE-2020-9543

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-9543/
Summaries are generated and may contain mistakes; the official description above is the record.
