CVE-2021-3654 Open Redirect in CPython that affects users of OpenStack Nova
Medium 6.1
Published
Updated
Check this codebase for CVE-2021-3654 and fix it if it is affected.
What it is: CVE-2021-3654 is a medium-severity vulnerability in openstack-nova, published on 2 Mar 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-3654 exists.
Affected packages and fixed versions:
- nova (PyPI): affected all versions; fixed in 21.2.3, 22.2.3, 23.0.3
- nova (PyPI): affected all versions; fixed in 21.2.3
- nova (PyPI): affected all versions; fixed in 21.2.3
- nova (PyPI): affected from 22.0.0; fixed in 22.2.3
- nova (PyPI): affected from 22.0.0; fixed in 22.2.3
- nova (PyPI): affected from 23.0.0; fixed in 23.0.3
- nova (PyPI): affected from 23.0.0; fixed in 23.0.3
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-2021-3654/ (Markdown: https://insights.sbomify.com/CVE-2021-3654/index.md)
Attackers can craft malicious URLs to redirect users to arbitrary sites via the noVNC console proxy in OpenStack Nova.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-3654?
CVE-2021-3654 is a medium-severity vulnerability in openstack-nova, published on 2 Mar 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.
Weakness: CWE-601
Which versions are affected by CVE-2021-3654?
7 open source packages ship an affected version, including nova. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
nova PyPI | All versions | 21.2.3, 22.2.3, 23.0.3 |
nova PyPI | All versions | 21.2.3 |
nova PyPI | All versions | 21.2.3 |
nova PyPI | From 22.0.0 | 22.2.3 |
nova PyPI | From 22.0.0 | 22.2.3 |
nova PyPI | From 23.0.0 | 23.0.3 |
1 more packages
nova PyPI | From 23.0.0 | 23.0.3 |
Linux distribution packages (24)
openstack-nova Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-api Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-common Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-compute Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-conductor Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-console Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-migration Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-novncproxy Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-scheduler Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-serialproxy Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova-spicehtml5proxy Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
python3-nova Red Hat:openstack:16.1::el8 | All versions | 1:20.4.1-1.20220112153422.1ee93b9.el8ost |
openstack-nova Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-api Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-common Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-compute Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-conductor Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-console Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-migration Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-novncproxy Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-scheduler Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-serialproxy Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
openstack-nova-spicehtml5proxy Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
python3-nova Red Hat:openstack:16.2::el8 | All versions | 1:20.6.2-2.20220112164912.8906554.el8ost |
Products include Openstack Nova, Redhat Openstack Platform.
How do I fix CVE-2021-3654?
Upgrade nova to a fixed version for your release line: 21.2.3, 22.2.3 or 23.0.3.
Is CVE-2021-3654 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-3654 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in openstack-nova
- CVE-2017-7214 OpenStack Nova logs sensitive context from notification exceptions
- CVE-2017-17051 OpenStack Nova DoS by rebuilding the same instance with a new image multiple times
- CVE-2020-17376 OpenStack Nova Live migration fails to update persistent domain XML
- CVE-2017-18191 OpenStack Nova Denial of service attack on the compute host
- CVE-2015-3280 OpenStack Compute (nova) allows remote authenticated users to cause a denial of service
Sources
Also known as DEBIAN-CVE-2021-3654, GHSA-vqp6-j452-j6wp, PYSEC-2026-693, RHSA-2022:0983, RHSA-2022:0999, UBUNTU-CVE-2021-3654.