Vulnerability · Published Jun 3, 2020 · Assigned by Tigera
CVE-2020-13597Calico nodes IPv6 traffic redirection from route advertisment
Medium 6.0
In plain English
A medium-severity security flaw in Calico from Tigera Inc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/projectcalico/calico | 3.14.1 | GHSA-pf59-j7c2-rh6x |
| Go | github.com/projectcalico/calico | 3.13.4 | GHSA-pf59-j7c2-rh6x |
| Go | github.com/projectcalico/calico | 3.12.2 | GHSA-pf59-j7c2-rh6x |
| Go | github.com/projectcalico/calico | 3.11.3 | GHSA-pf59-j7c2-rh6x |
| Go | github.com/projectcalico/calico | 3.10.4 | GHSA-pf59-j7c2-rh6x |
| Go | github.com/projectcalico/calico | 3.9.6 | GHSA-pf59-j7c2-rh6x |
| Go | github.com/projectcalico/calico | 3.8.9 | GHSA-pf59-j7c2-rh6x |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Tigera Inc | Calico | 3.14.0unspecified – through 3.13.3unspecified – through 3.12.1unspecified – through 3.11.2unspecified – through 3.10.3unspecified – through 3.9.5unspecified – through 3.8.83.7.x |
| Tigera Inc | Calico Enterprise | unspecified – through 2.8.2unspecified – through 2.7.4unspecified – through 2.6.22.5.x2.4.x2.3.x2.2.x2.1.x |
Weakness: CWE-201 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
References
- https://www.projectcalico.org/security-bulletins/ x_refsource_CONFIRM
- https://groups.google.com/forum/#%21topic/kubernetes-security-announce/BMb_6ICCfp8 x_refsource_CONFIRM
- https://github.com/kubernetes/kubernetes/issues/91507 x_refsource_CONFIRM