# CVE-2013-6491: Weak cryptography in n/a

> Remote attackers can sniff sensitive information because the OpenStack Oslo library fails to enforce SSL connections when configured for secure protocols.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:P/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:** 2 Feb 2014
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2013-6491, GHSA-36gw-3xf6-9pvq, RHBA-2014:0363

## What is CVE-2013-6491?

CVE-2013-6491 is a medium-severity vulnerability in Redhat Openstack, published on 2 Feb 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The python-qpid client (common/rpc/impl_qpid.py) in OpenStack Oslo before 2013.2 does not enforce SSL connections when qpid_protocol is set to ssl, which allows remote attackers to obtain sensitive information by sniffing the network.

Weakness: CWE-310

## Which versions are affected by CVE-2013-6491?

It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `openstack-cinder` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-2.el6ost |
| `openstack-cinder-doc` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-2.el6ost |
| `openstack-glance` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-glance-doc` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-bigswitch` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-brocade` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-cisco` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-hyperv` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-linuxbridge` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-metaplugin` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-midonet` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-nec` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-nicira` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-openvswitch` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-plumgrid` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `openstack-quantum-ryu` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `python-cinder` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-2.el6ost |
| `python-glance` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `python-quantum` | Red Hat:openstack:3::el6 | All versions | 0:2013.1.5-1.el6ost |
| `qemu-img-rhev` | Red Hat:openstack:3::el6 | All versions | 2:0.12.1.2-2.415.el6_5.6 |
| `qemu-kvm-rhev` | Red Hat:openstack:3::el6 | All versions | 2:0.12.1.2-2.415.el6_5.6 |
| `qemu-kvm-rhev-debuginfo` | Red Hat:openstack:3::el6 | All versions | 2:0.12.1.2-2.415.el6_5.6 |
| `qemu-kvm-rhev-tools` | Red Hat:openstack:3::el6 | All versions | 2:0.12.1.2-2.415.el6_5.6 |

Products: Openstack Oslo, Redhat Openstack.

## How do I fix CVE-2013-6491?

Upgrade to a fixed version.

## Is CVE-2013-6491 being exploited?

There is no known exploitation of CVE-2013-6491 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-6491 and fix it if it is affected.

What it is: CVE-2013-6491 is a medium-severity vulnerability in Redhat Openstack, published on 2 Feb 2014. 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-2013-6491 in the wild and no public exploit code.

Affected product: Redhat Openstack. 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-2013-6491/ (Markdown: https://insights.sbomify.com/CVE-2013-6491/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-6491
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-6491
- OSV: https://osv.dev/vulnerability/CVE-2013-6491

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-6491/
Summaries are generated and may contain mistakes; the official description above is the record.