1.修復的CVE ·CVE-2020-25717 描述：此缺陷能夠使samba的AD域用戶在被查找失敗的情況下被映射為本地的同名用戶，此本地用戶的權限可能比AD域用戶高，由此導致AD域用戶獲得提權。此漏洞帶來的最大威脅是對系統機密性和完整性的威脅。 2.受影響的軟件包 ·中標麒麟高級服務器操作系統 V7 ·aarch64架構: samba-winbind、samba、samba-client、samba-client-libs、samba-libs、samba-winbind-clients、samba-common、samba-test、samba-common-tools、libwbclient、samba-test-libs、samba-python、libsmbclient-devel、libsmbclient、ctdb、samba-winbind-modules、ctdb-tests、samba-pidl、samba-python-test、samba-dc、samba-devel、samba-winbind-krb5-locator、samba-krb5-printing、samba-common-libs、samba-dc-libs、libwbclient-devel ·x86_64架構: samba-winbind、samba、samba-client、samba-client-libs、samba-libs、samba-winbind-clients、samba-common、samba-test、samba-common-tools、libwbclient、samba-test-libs、samba-python、libsmbclient-devel、libsmbclient、ctdb、samba-winbind-modules、ctdb-tests、samba-pidl、samba-vfs-glusterfs、samba-python-test、samba-dc、samba-devel、samba-winbind-krb5-locator、samba-krb5-printing、samba-common-libs、samba-dc-libs、libwbclient-devel 3.軟件包修復版本 ·中標麒麟高級服務器操作系統 V7 (aarch64) samba-dc-libs-4.10.16-19.el7_9.ns7.01或以上版本 libwbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-dc-4.10.16-19.el7_9.ns7.01或以上版本 samba-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-4.10.16-19.el7_9.ns7.01或以上版本 samba-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-krb5-printing-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-libs-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-pidl-4.10.16-19.el7_9.ns7.01或以上版本 libwbclient-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-modules-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-tools-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-tests-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-clients-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-4.10.16-19.el7_9.ns7.01或以上版本 ·中標麒麟高級服務器操作系統 V7 (x86_64) libwbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-dc-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-dc-4.10.16-19.el7_9.ns7.01或以上版本 samba-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-4.10.16-19.el7_9.ns7.01或以上版本 samba-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-libs-4.10.16-19.el7_9.ns7.01或以上版本 samba-krb5-printing-4.10.16-19.el7_9.ns7.01或以上版本 samba-test-4.10.16-19.el7_9.ns7.01或以上版本 samba-libs-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-devel-4.10.16-19.el7_9.ns7.01或以上版本 samba-vfs-glusterfs-4.10.16-19.el7_9.ns7.01或以上版本 samba-pidl-4.10.16-19.el7_9.ns7.01或以上版本 libwbclient-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-4.10.16-19.el7_9.ns7.01或以上版本 samba-python-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-modules-4.10.16-19.el7_9.ns7.01或以上版本 samba-common-tools-4.10.16-19.el7_9.ns7.01或以上版本 ctdb-tests-4.10.16-19.el7_9.ns7.01或以上版本 samba-winbind-clients-4.10.16-19.el7_9.ns7.01或以上版本 libsmbclient-4.10.16-19.el7_9.ns7.01或以上版本 samba-client-4.10.16-19.el7_9.ns7.01或以上版本 4.修復方法 方法一：配置源進行升級安裝 1.打開軟件包源配置文件，根據倉庫地址進行修改。 倉庫源地址： 中標麒麟高級服務器操作系統 V7 aarch64:https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/ x86_64:https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/ 2.配置完成后執行更新命令進行升級，命令如下： yum update Packagename 方法二：下載安裝包進行升級安裝 通過軟件包地址下載軟件包，使用軟件包升級命令根據受影響的軟件包 列表進行升級安裝, 命令如下： yum install Packagename 3.升級完成后是否需要重啟服務或操作系統： CVE-2020-25717:需要重啟 samba 以使漏洞修復生效。 5.軟件包下載地址 ·中標麒麟高級服務器操作系統 V7 samba(aarch64)軟件包下載地址: https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-python-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-modules-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-clients-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-python-test-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-winbind-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-test-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-test-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-common-4.10.16-19.el7_9.ns7.01.noarch.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-krb5-printing-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-common-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-client-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libsmbclient-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libsmbclient-devel-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/ctdb-tests-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/ctdb-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-devel-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-dc-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-pidl-4.10.16-19.el7_9.ns7.01.noarch.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-dc-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-libs-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-client-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libwbclient-devel-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/libwbclient-4.10.16-19.el7_9.ns7.01.aarch64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/aarch64/Packages/samba-common-tools-4.10.16-19.el7_9.ns7.01.aarch64.rpm samba(x86_64)軟件包下載地址: https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-test-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-common-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libwbclient-devel-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-python-test-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-dc-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-modules-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-clients-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-common-tools-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-krb5-printing-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-client-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-devel-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libwbclient-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/ctdb-tests-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/ctdb-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-vfs-glusterfs-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-devel-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libwbclient-devel-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-dc-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-python-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-python-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-common-4.10.16-19.el7_9.ns7.01.noarch.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-libs-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-pidl-4.10.16-19.el7_9.ns7.01.noarch.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-modules-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-test-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-client-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-client-libs-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-krb5-locator-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-winbind-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/libsmbclient-devel-4.10.16-19.el7_9.ns7.01.i686.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-devel-4.10.16-19.el7_9.ns7.01.x86_64.rpm https://update.cs2c.com.cn/NS/V7/V7Update9/os/adv/lic/updates/x86_64/Packages/samba-libs-4.10.16-19.el7_9.ns7.01.x86_64.rpm 注：其他相關依賴包請到相同目錄下載 6.修復驗證 使用軟件包查詢命令，查看相關軟件包版本是否與修復版本一致，如果版本一致，則說明修復成功。 sudo rpm -qa | grep Packagename