RHEL 7:samba (RHSA-2020: 5439)

critical Nessus Plugin ID 144423

Synopsis

遠端 Red Hat 主機缺少一個或多個安全性更新。

描述

遠端 Redhat Enterprise Linux 7 主機上安裝的套件受到 RHSA-2020: 5439 公告中提及的多個弱點影響。

- samba:SMB1/2/3 ChangeNotify 中缺失處理權限檢查 (CVE-2020-14318)

- samba:無特權的使用者可以損毀 winbind (CVE-2020-14323)

- samba:Netlogon 權限提升弱點 (Zerologon) (CVE-2020-1472)

請注意,Nessus 並未測試這些問題,而是僅依據應用程式自我報告的版本號碼作出判斷。

解決方案

更新受影響的套件。

另請參閱

https://access.redhat.com/security/cve/CVE-2020-1472

https://access.redhat.com/security/cve/CVE-2020-14318

https://access.redhat.com/security/cve/CVE-2020-14323

https://access.redhat.com/errata/RHSA-2020:5439

https://bugzilla.redhat.com/1879822

https://bugzilla.redhat.com/1891685

https://bugzilla.redhat.com/1892631

Plugin 詳細資訊

嚴重性: Critical

ID: 144423

檔案名稱: redhat-RHSA-2020-5439.nasl

版本: 1.10

類型: local

代理程式: unix

已發布: 2020/12/18

已更新: 2023/1/23

支持的傳感器: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment

風險資訊

VPR

風險因素: Critical

分數: 10

CVSS v2

風險因素: High

基本分數: 9.3

時間分數: 8.1

媒介: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

時間媒介: CVSS2#E:H/RL:OF/RC:C

CVSS 評分資料來源: CVE-2020-1472

CVSS v3

風險因素: Critical

基本分數: 10

時間分數: 9.5

媒介: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

時間媒介: CVSS:3.0/E:H/RL:O/RC:C

弱點資訊

CPE: cpe:2.3:o:redhat:enterprise_linux:7:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-client:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-common:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:libsmbclient:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:libsmbclient-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-winbind:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-winbind-clients:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-winbind-krb5-locator:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:ctdb:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:ctdb-tests:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:libwbclient:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:libwbclient-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-client-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-common-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-common-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-dc:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-dc-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-pidl:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-python:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-test:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-test-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-vfs-glusterfs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-winbind-modules:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-krb5-printing:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:samba-python-test:*:*:*:*:*:*:*

必要的 KB 項目: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

可被惡意程式利用: true

可輕鬆利用: Exploits are available

修補程式發佈日期: 2020/12/15

弱點發布日期: 2020/8/11

CISA 已知利用日期: 2020/9/21

參考資訊

CVE: CVE-2020-1472, CVE-2020-14323, CVE-2020-14318

CWE: 287, 170, 266

IAVA: 2020-A-0367-S, 2020-A-0438-S, 2020-A-0508-S

RHSA: 2020:5439

CISA-NCAS: AA22-011A

CEA-ID: CEA-2021-0025, CEA-2020-0129, CEA-2020-0101, CEA-2021-0008, CEA-2020-0121