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2020年09月の脆弱性

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今月話題になった脆弱性まとめ

CVE-2020-1472

Description from NVD

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC), aka 'Netlogon Elevation of Privilege Vulnerability'.

Information Acquisition Date:2020/09/16
CVSS 2.0: 9.3 HIGH CVSS 3.x: 10.0 CRITICAL
This vulnerability may involve a PoC.

Description from Forti

Microsoft: Netlogon Elevation of Privilege Vulnerability

This indicates an attack attempt to exploit an Elevation of Priviledge on Windows Server Netlogon Service.The vulnerablitiy is due to flaws in a cryptographic authentication protocol that proves the authenticity and identity of a domain-joined computer to a Windows Server Domain Controller. Successful exploitation can lead to an attacker gaining domain admin privileges on the vulnerable server.

Information Acquisition Date:2020/09/28

Affected Products

Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)
Windows Server 2016
Windows Server 2016 (Server Core installation)
Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server, version 1903 (Server Core installation)
Windows Server, version 1909 (Server Core installation)
Windows Server, version 2004 (Server Core installation)

Impact

Privilege Escalation: Remote attackers can leverage their privileges on vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472

References

Highest Score:319 （2020/09/15）

脆弱性情報：Har-sia CVE-2020-1472

管理者コメント

（自動翻訳）脆弱性まとめる際にここに自動翻訳を挿入します。次月までお待ちください。（自動翻訳ここまで）

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CVE-2020-8557

Description from NVD

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral storage usage by a pod. If a pod writes a large amount of data to the /etc/hosts file, it could fill the storage space of the node and cause the node to fail.

Information Acquisition Date:2020/09/03
CVSS 2.0: 2.1 LOW CVSS 3.x: 0.0 None

Highest Score:38 （2020/09/02）

脆弱性情報：Har-sia CVE-2020-8557

管理者コメント

（自動翻訳）脆弱性まとめる際にここに自動翻訳を挿入します。次月までお待ちください。（自動翻訳ここまで）

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CVE-2020-8559

Description from NVD

The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on proxied upgrade requests that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.

Information Acquisition Date:2020/09/03
CVSS 2.0: 6.0 MEDIUM CVSS 3.x: 6.8 MEDIUM
This vulnerability may involve a PoC.

Highest Score:40 （2020/09/02）

脆弱性情報：Har-sia CVE-2020-8559

管理者コメント

（自動翻訳）脆弱性まとめる際にここに自動翻訳を挿入します。次月までお待ちください。（自動翻訳ここまで）

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参考URL：

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