# CVE-2016-7031: Information disclosure in n/a

> Remote attackers can list bucket contents in Ceph object storage when authenticated-read ACLs are applied, exposing sensitive data.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 3 Oct 2016
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2016-7031, GHSA-cfww-rhhj-3fwm, RHSA-2016:1972, UBUNTU-CVE-2016-7031

## What is CVE-2016-7031?

CVE-2016-7031 is a high-severity vulnerability in n/a, published on 3 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The RGW code in Ceph before 10.0.1, when authenticated-read ACL is applied to a bucket, allows remote attackers to list the bucket contents via a URL.

Weakness: CWE-254, CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2016-7031?

It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `calamari-server` | Red Hat:ceph_storage:1.3::el7 | All versions | 0:1.3.3-2.el7cp |
| `ceph` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `ceph-common` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `ceph-debuginfo` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `ceph-deploy` | Red Hat:ceph_storage:1.3::el7 | All versions | 0:1.5.36-1.el7cp |
| `ceph-mon` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `ceph-osd` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `ceph-radosgw` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `ceph-selinux` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `ceph-test` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `librados2` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `librados2-devel` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `librbd1` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `librbd1-devel` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `python-rados` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `python-rbd` | Red Hat:ceph_storage:1.3::el7 | All versions | 1:0.94.9-3.el7cp |
| `radosgw-agent` | Red Hat:ceph_storage:1.3::el7 | All versions | 0:1.2.7-1.el7cp |

Products: Ceph Project Ceph, Redhat Ceph Storage.

## How do I fix CVE-2016-7031?

Upgrade to a fixed version.

## Is CVE-2016-7031 being exploited?

There is no known exploitation of CVE-2016-7031 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-7031 and fix it if it is affected.

What it is: CVE-2016-7031 is a high-severity vulnerability in n/a, published on 3 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-7031 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2016-7031/ (Markdown: https://insights.sbomify.com/CVE-2016-7031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-7031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-7031
- OSV: https://osv.dev/vulnerability/CVE-2016-7031

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-7031/
Summaries are generated and may contain mistakes; the official description above is the record.