CVE-2020-13597 Calico nodes IPv6 traffic redirection from route advertisment
A compromised pod can redirect node IPv6 traffic to itself, enabling information disclosure and traffic interception in clusters with IPv6 enabled.
- 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-2020-13597?
CVE-2020-13597 is a medium-severity vulnerability in Tigera Inc Calico, published on 3 Jun 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
Which versions are affected by CVE-2020-13597?
14 open source packages ship an affected version, including github.com/projectcalico/calico. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/projectcalico/calico Go | All versions | 3.8.9 |
github.com/projectcalico/calico Go | All versions | 3.8.9 |
github.com/projectcalico/calico Go | From 3.10.0 | 3.10.4 |
github.com/projectcalico/calico Go | From 3.10.0 | 3.10.4 |
github.com/projectcalico/calico Go | From 3.11.0 | 3.11.3 |
github.com/projectcalico/calico Go | From 3.11.0 | 3.11.3 |
8 more packages
github.com/projectcalico/calico Go | From 3.12.0 | 3.12.2 |
github.com/projectcalico/calico Go | From 3.12.0 | 3.12.2 |
github.com/projectcalico/calico Go | From 3.13.0 | 3.13.4 |
github.com/projectcalico/calico Go | From 3.13.0 | 3.13.4 |
github.com/projectcalico/calico Go | From 3.14.0 | 3.14.1 |
github.com/projectcalico/calico Go | From 3.14.0 | 3.14.1 |
github.com/projectcalico/calico Go | From 3.9.0 | 3.9.6 |
github.com/projectcalico/calico Go | From 3.9.0 | 3.9.6 |
Products include Projectcalico Calico.
How do I fix CVE-2020-13597?
Upgrade github.com/projectcalico/calico to a fixed version for your release line: 3.8.9, 3.10.4, 3.11.3 or 3.12.2.
Is CVE-2020-13597 being exploited?
There is no known exploitation of CVE-2020-13597 in the wild and no public exploit code.
Sources
Also known as GHSA-pf59-j7c2-rh6x.