Vulnerability Name:

CVE-2020-8566 (CCN-189926)

Assigned:2020-10-16
Published:2020-10-16
Updated:2021-03-29
Summary:In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager's logs during provisioning of Ceph RBD persistent claims. This affects < v1.19.3, < v1.18.10, < v1.17.13.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
4.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.1 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
3.8 Low (CCN CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-532
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-8566

Source: XF
Type: UNKNOWN
kubernetes-cve20208566-info-disc(189926)

Source: CONFIRM
Type: Third Party Advisory
https://github.com/kubernetes/kubernetes/issues/95624

Source: CCN
Type: kubernetes GIT Repository
Mask Ceph RBD adminSecrets in logs when logLevel >= 4 #95245

Source: MLIST
Type: Mailing List, Patch, Third Party Advisory
Multiple secret leaks when verbose logging is enabled

Source: CCN
Type: oss-sec Mailing List, Fri, 16 Oct 2020 09:55:45 +1000
Kubernetes: Multiple secret leaks when verbose logging is enabled

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20210122-0006/

Source: CCN
Type: IBM Security Bulletin 6417487 (Cloud Private)
IBM Cloud Private is vulnerable to Kubernetes vulnerabilities (CVE-2020-8566, CVE-2020-8565, CVE-2020-8563, CVE-2020-8564)

Source: CCN
Type: IBM Security Bulletin 6452959 (Spectrum Discover)
Vulnerabilities in the Python, Docker, and ICP affect IBM Spectrum Discover

Vulnerable Configuration:Configuration 1:
  • cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.17.0 and < 1.17.13)
  • OR cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.18.0 and < 1.18.10)
  • OR cpe:/a:kubernetes:kubernetes:*:*:*:*:*:*:*:* (Version >= 1.19.0 and < 1.19.3)

    • Configuration CCN 1:
  • cpe:/a:kubernetes:kubernetes:1.17.0:-:*:*:*:*:*:*
  • OR cpe:/a:kubernetes:kubernetes:1.18.0:-:*:*:*:*:*:*
  • OR cpe:/a:kubernetes:kubernetes:1.19.0:-:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:cloud_private:3.2.1:cd:*:*:*:*:*:*
  • OR cpe:/a:ibm:cloud_private:3.2.2:cd:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:3783
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:104149
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    oval:org.opensuse.security:def:97459
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    oval:org.opensuse.security:def:64872
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    oval:org.opensuse.security:def:90494
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    BACK
    kubernetes kubernetes *
    kubernetes kubernetes *
    kubernetes kubernetes *
    kubernetes kubernetes 1.17.0 -
    kubernetes kubernetes 1.18.0 -
    kubernetes kubernetes 1.19.0 -
    ibm cloud private 3.2.1 cd
    ibm cloud private 3.2.2 cd