Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Network
0

CVE-2020-8554

Disclosure Date: December 07, 2020
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.

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CVSS V3 Severity and Metrics
Base Score:
5.0 Medium
Impact Score:
3.4
Exploitability Score:
1.6
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
Low
Integrity (I):
Low
Availability (A):
Low

General Information

Vendors

  • kubernetes,
  • oracle

Products

  • communications cloud native core network slice selection function 1.2.1,
  • communications cloud native core policy 1.15.0,
  • communications cloud native core service communication proxy 1.14.0,
  • kubernetes

Additional Info

Technical Analysis