CVE Vulnerabilities

CVE-2020-13597

Insertion of Sensitive Information Into Sent Data

Published: Jun 03, 2020 | Modified: Nov 21, 2024
CVSS 3.x
3.5
LOW
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS 2.x
2.1 LOW
AV:N/AC:H/Au:S/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.

Affected Software

Name Vendor Start Version End Version
Calico Projectcalico * 2.6.2 (including)
Calico Projectcalico * 3.8.8 (including)
Calico Projectcalico 2.7.0 (including) 2.7.4 (including)
Calico Projectcalico 2.8.0 (including) 2.8.2 (including)
Calico Projectcalico 3.9.0 (including) 3.9.5 (including)
Calico Projectcalico 3.10.0 (including) 3.10.3 (including)
Calico Projectcalico 3.11.0 (including) 3.11.2 (including)
Calico Projectcalico 3.12.0 (including) 3.12.1 (including)
Calico Projectcalico 3.13.0 (including) 3.13.3 (including)
Calico Projectcalico 3.14.0 (including) 3.14.0 (including)

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References