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165 lines
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165 lines
6.3 KiB
Markdown
[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: (wxy)
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[#]: publisher: (wxy)
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[#]: url: (https://linux.cn/article-10960-1.html)
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[#]: subject: (Two Methods To Check Or List Installed Security Updates on Redhat (RHEL) And CentOS System)
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[#]: via: (https://www.2daygeek.com/check-installed-security-updates-on-redhat-rhel-and-centos-system/)
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[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/)
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在 RHEL 和 CentOS 上检查或列出已安装的安全更新的两种方法
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======
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我们过去曾写过两篇关于这个主题的文章，每篇文章都是根据不同的要求发表的。如果你想在开始之前浏览这些文章。请通过以下链接：
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* [如何检查 RHEL 和 CentOS 上的可用安全更新？][1]
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* [在 RHEL 和 CentOS 上安装安全更新的四种方法？][2]
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这些文章与其他文章相互关联，因此，在深入研究之前，最好先阅读这些文章。
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在本文中，我们将向你展示如何检查已安装的安全更新。我会介绍两种方法，你可以选择最适合你的。
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此外，我还添加了一个小的 shell 脚本，它为你提供已安装的安全包计数。
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运行以下命令获取系统上已安装的安全更新的列表。
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```
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# yum updateinfo list security installed
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Loaded plugins: changelog, package_upload, product-id, search-disabled-repos,
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: subscription-manager, verify, versionlock
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RHSA-2015:2315 Moderate/Sec. ModemManager-glib-1.1.0-8.git20130913.el7.x86_64
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RHSA-2015:2315 Moderate/Sec. NetworkManager-1:1.0.6-27.el7.x86_64
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RHSA-2016:2581 Low/Sec. NetworkManager-1:1.4.0-12.el7.x86_64
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RHSA-2017:2299 Moderate/Sec. NetworkManager-1:1.8.0-9.el7.x86_64
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RHSA-2015:2315 Moderate/Sec. NetworkManager-adsl-1:1.0.6-27.el7.x86_64
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RHSA-2016:2581 Low/Sec. NetworkManager-adsl-1:1.4.0-12.el7.x86_64
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RHSA-2017:2299 Moderate/Sec. NetworkManager-adsl-1:1.8.0-9.el7.x86_64
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RHSA-2015:2315 Moderate/Sec. NetworkManager-bluetooth-1:1.0.6-27.el7.x86_64
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```
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要计算已安装的安全包的数量，请运行以下命令：
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```
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# yum updateinfo list security installed | wc -l
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1046
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```
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仅打印安装包列表：
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```
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# yum updateinfo list security all | grep -w "i"
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i RHSA-2015:2315 Moderate/Sec. ModemManager-glib-1.1.0-8.git20130913.el7.x86_64
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i RHSA-2015:2315 Moderate/Sec. NetworkManager-1:1.0.6-27.el7.x86_64
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i RHSA-2016:2581 Low/Sec. NetworkManager-1:1.4.0-12.el7.x86_64
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i RHSA-2017:2299 Moderate/Sec. NetworkManager-1:1.8.0-9.el7.x86_64
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i RHSA-2015:2315 Moderate/Sec. NetworkManager-adsl-1:1.0.6-27.el7.x86_64
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i RHSA-2016:2581 Low/Sec. NetworkManager-adsl-1:1.4.0-12.el7.x86_64
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i RHSA-2017:2299 Moderate/Sec. NetworkManager-adsl-1:1.8.0-9.el7.x86_64
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i RHSA-2015:2315 Moderate/Sec. NetworkManager-bluetooth-1:1.0.6-27.el7.x86_64
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i RHSA-2016:2581 Low/Sec. NetworkManager-bluetooth-1:1.4.0-12.el7.x86_64
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i RHSA-2017:2299 Moderate/Sec. NetworkManager-bluetooth-1:1.8.0-9.el7.x86_64
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i RHSA-2015:2315 Moderate/Sec. NetworkManager-config-server-1:1.0.6-27.el7.x86_64
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i RHSA-2016:2581 Low/Sec. NetworkManager-config-server-1:1.4.0-12.el7.x86_64
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i RHSA-2017:2299 Moderate/Sec. NetworkManager-config-server-1:1.8.0-9.el7.noarch
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```
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要计算已安装的安全包的数量，请运行以下命令：
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```
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# yum updateinfo list security all | grep -w "i" | wc -l
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1043
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```
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或者，你可以检查指定包修复的漏洞列表。
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在此例中，我们将检查 “openssh” 包中已修复的漏洞列表：
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```
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# rpm -q --changelog openssh | grep -i CVE
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- Fix for CVE-2017-15906 (#1517226)
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- CVE-2015-8325: privilege escalation via user's PAM environment and UseLogin=yes (#1329191)
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- CVE-2016-1908: possible fallback from untrusted to trusted X11 forwarding (#1298741)
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- CVE-2016-3115: missing sanitisation of input for X11 forwarding (#1317819)
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- prevents CVE-2016-0777 and CVE-2016-0778
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- Security fixes released with openssh-6.9 (CVE-2015-5352) (#1247864)
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- only query each keyboard-interactive device once (CVE-2015-5600) (#1245971)
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- add new option GSSAPIEnablek5users and disable using ~/.k5users by default CVE-2014-9278
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- prevent a server from skipping SSHFP lookup - CVE-2014-2653 (#1081338)
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- change default value of MaxStartups - CVE-2010-5107 (#908707)
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- CVE-2010-4755
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- merged cve-2007_3102 to audit patch
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- fixed audit log injection problem (CVE-2007-3102)
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- CVE-2006-5794 - properly detect failed key verify in monitor (#214641)
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- CVE-2006-4924 - prevent DoS on deattack detector (#207957)
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- CVE-2006-5051 - don't call cleanups from signal handler (#208459)
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- use fork+exec instead of system in scp - CVE-2006-0225 (#168167)
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```
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同样，你可以通过运行以下命令来检查相应的包中是否修复了指定的漏洞：
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```
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# rpm -q --changelog openssh | grep -i CVE-2016-3115
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- CVE-2016-3115: missing sanitisation of input for X11 forwarding (#1317819)
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```
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### 如何使用 Shell 脚本计算安装的安全包？
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我添加了一个小的 shell 脚本，它可以帮助你计算已安装的安全包列表。
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```
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# vi /opt/scripts/security-check.sh
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#!/bin/bash
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echo "+-------------------------+"
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echo "|Security Advisories Count|"
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echo "+-------------------------+"
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for i in Important Moderate Low
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do
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sec=$(yum updateinfo list security installed | grep $i | wc -l)
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echo "$i: $sec"
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done | column -t
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echo "+-------------------------+"
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```
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给 `security-check.sh` 文件执行权限。
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```
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$ chmod +x security-check.sh
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```
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最后执行脚本统计。
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```
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# sh /opt/scripts/security-check.sh
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+-------------------------+
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|Security Advisories Count|
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+-------------------------+
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Important: 480
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Moderate: 410
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Low: 111
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+-------------------------+
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```
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--------------------------------------------------------------------------------
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via: https://www.2daygeek.com/check-installed-security-updates-on-redhat-rhel-and-centos-system/
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作者：[Magesh Maruthamuthu][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[wxy](https://github.com/wxy)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.2daygeek.com/author/magesh/
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[b]: https://github.com/lujun9972
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[1]: https://linux.cn/article-10938-1.html
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[2]: https://www.2daygeek.com/install-security-updates-on-redhat-rhel-centos-system/
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