CVE-2019-12274 Rancher Privilege Escalation Vulnerability

What is CVE-2019-12274?

CVE-2019-12274 is a high-severity vulnerability in n/a, published on 6 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Rancher 1 and 2 through 2.2.3, unprivileged users (if allowed to deploy nodes) can gain admin access to the Rancher management plane because node driver options intentionally allow posting certain data to the cloud. The problem is that a user could choose to post a sensitive file such as /root/.kube/config or /var/lib/rancher/management-state/cred/kubeconfig-system.yaml.

Weakness: CWE-862, CWE-668

Which versions are affected by CVE-2019-12274?

5 open source packages ship an affected version, including github.com/rancher/rancher. It affects 1 product.

Products include Suse Rancher.

How do I fix CVE-2019-12274?

Upgrade github.com/rancher/rancher to a fixed version for your release line: 1.6.27, 2.2.4+incompatible or 2.2.4.

Is CVE-2019-12274 being exploited?

There is no known exploitation of CVE-2019-12274 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2023-22647 Rancher vulnerable to Privilege Escalation via manipulation of Secrets Critical 9.9
• CVE-2023-22651 Rancher Webhook is misconfigured during upgrade process Critical 9.9
• CVE-2022-43757 Rancher: Exposure of sensitive fields Critical 9.9
• CVE-2021-36782 Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object Critical 9.9
• CVE-2021-36783 Rancher: Failure to properly sanitize credentials in cluster template answers Critical 9.9

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-gc62-j469-9gjm, GO-2023-1991.