title: Calico nodes IPv6 traffic redirection from route advertisment
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.
problem types: CWE-201 Information Exposure Through Sent Data
affected:
{
product: Calico
vendor: Tigera Inc
versions:
status: affected, version: 3.14.0
lessThanOrEqual: 3.13.3, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 3.12.1, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 3.11.2, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 3.10.3, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 3.9.5, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 3.8.8, status: affected, version: unspecified, versionType: custom
status: affected, version: 3.7.x
status: affected, version: 3.6.x
status: affected, version: 3.5.x
status: affected, version: 3.4.x
status: affected, version: 3.3.x
status: affected, version: 3.2.x
status: affected, version: 3.1.x
status: affected, version: 3.0.x
status: affected, version: 2.6.x
status: affected, version: 2.5.x
status: affected, version: 2.4.x
status: affected, version: 2.3.x
status: affected, version: 2.2.x
status: affected, version: 2.1.x
status: affected, version: 2.0.x
status: affected, version: 1.6.x
status: affected, version: 1.5.x
}
{
product: Calico Enterprise
vendor: Tigera Inc
versions:
lessThanOrEqual: 2.8.2, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 2.7.4, status: affected, version: unspecified, versionType: custom
lessThanOrEqual: 2.6.2, status: affected, version: unspecified, versionType: custom
status: affected, version: 2.5.x
status: affected, version: 2.4.x
status: affected, version: 2.3.x
status: affected, version: 2.2.x
status: affected, version: 2.1.x
status: affected, version: 2.0.x
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 6
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
version: 3.1
]