CVE-2020-8555 Information

Description

The Kubernetes kube-controller-manager in versions v1.0-1.14 versions prior to v1.15.12 v1.16.9 v1.17.5 and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master’s host network (such as link-local or loopback services).

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Reference

http://www.openwall.com/lists/oss-security/2020/06/01/4 https://github.com/kubernetes/kubernetes/issues/91542 https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/ https://security.netapp.com/advisory/ntap-20200724-0005/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.3