CVE-2020-10676 Rancher users retain access after moving namespaces into projects they don't have access to

What is CVE-2020-10676?

CVE-2020-10676 is a high-severity missing authorization vulnerability in n/a, published on 12 Dec 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Rancher 2.x before 2.6.13 and 2.7.x before 2.7.4, an incorrectly applied authorization check allows users who have certain access to a namespace to move that namespace to a different project.

Weakness: CWE-863

Which versions are affected by CVE-2020-10676?

4 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-2020-10676?

Upgrade github.com/rancher/rancher to a fixed version for your release line: 2.6.13 or 2.7.4.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-10676 being exploited?

There is no known exploitation of CVE-2020-10676 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-8vhc-hwhc-cpj4.