CVE-2021-3495 Access control flaw in Kiali
An attacker with basic cluster access can deploy arbitrary images to gain privileged service account tokens, compromising confidentiality, integrity, and availability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-3495?
CVE-2021-3495 is a high-severity vulnerability in kiali/kiali-operator, published on 1 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An incorrect access control flaw was found in the kiali-operator in versions before 1.33.0 and before 1.24.7. This flaw allows an attacker with a basic level of access to the cluster (to deploy a kiali operand) to use this vulnerability and deploy a given image to anywhere in the cluster, potentially gaining access to privileged service account tokens. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Weakness: CWE-281
Which versions are affected by CVE-2021-3495?
3 open source packages ship an affected version, including github.com/kiali/kiali. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
github.com/kiali/kiali Go | All versions | 1.33.0 |
github.com/kiali/kiali Go | All versions | 1.33.0 |
github.com/kiali/kiali Go | All versions | 1.33.0 |
Products include Netlify Kiali-Operator, Redhat Openshift Service Mesh.
How do I fix CVE-2021-3495?
Upgrade github.com/kiali/kiali to 1.33.0 or later.
Is CVE-2021-3495 being exploited?
There is no known exploitation of CVE-2021-3495 in the wild and no public exploit code.
Sources
Also known as GHSA-mv55-23xp-3wp8, GO-2022-0645.