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云安全日报210816:红帽系统安全服务守护程序发现命令注入漏洞,需要尽快升级
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简介...
SSSD是红帽系统安全服务守护程序。 SSSD服务提供一组守护程序来管理对远程目录和身份验证机制的访问。它还为系统提供名称服务交换机 (NSS) 和可插拔身份验证模块 (PAM) 接口,以及一个可插拔后端系统以连接到多个不同的帐户源。8月16日,RedHat发布了安全更新,修云安复了红帽系统安全服务守护程序(SSSD)中发现的命令注入漏洞。以下是漏洞详情:
漏洞详情
来源:https://access.redhat.com/errata/RHSA-2021:3151
CVE-2021-3621 CVSS评分:6.7 严重程度:高
在 SSSD 中发现了一个全日漏洞,其中sssctl命令容易受到通过logs-fetch和cache-expire子命令的shell命令注入。此漏洞允许攻击者诱使 root 用户运行特制的 sssctl 命令,例如通过 sudo,以获得 root 访问权限。此漏洞的最大威胁是机密性、完整性和系统可用性。
受影响产报2品和版本
Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.4 x86_64
Red Hat Enterprise Linux Server - AUS 8.4 x86_64
Red Hat Enterprise Linux for IBM z Sys10tems 8 s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.4 s390x
Red Hat Enterprise Linux for Power, little endian 8 ppc64le
Red Hat En81terprise Linux for Power, little endian - Extended Update Support 8.4 ppc64le
Red Hat Virtualization Host 4 for RHEL 8 x86_64
Red Hat Enterprise Linux for x86_6:64 8 x86_64
Red Hat Enterprise Linux Server - TUS 8.4 x86_64
Red Hat Enterprise Linux for ARM 64 8 aarch64
Red Hat Enterprise Linux Server (for IBM Power LE) - Update S红帽ervices for SAP Solutions 8.4 ppc64le
Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.4 x86_64
Red Hat CodeReady Linux Builder for x86_64 8 x8系统6_64
Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
Red Hat CodeReady Linux Builder for安全 IBM z Systems 8 s390x
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Suppo服务rt 8.4 x86_64
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.4 ppc64le
Red Hat CodeReady Linux Builder for IBM z Systems - Exte守护nded Update Support 8.4 s390x
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.4 aarch64
解决方案
SSSD的安全更新现在可用于Red Hat Enterprise Linux 8,有关如何程序应用此更新的详细信息,请参阅:
https://access.redhat.com/articles/11258
查看更多漏洞信息 以及升级请访问官网:
https://access.redhat.com/security/security-updates/#/security-ad发现visories
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