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密码更改最大尝试次数(SUSE Linux Enterprise Server 11)

Microsoft.ACS.Linux.SLES.11.Password.Change.Maximum.Tries (Rule)

用于收集密码更改最大尝试次数相关事件的规则

Knowledge Base article:

摘要

在系统日志文件中检测到不成功的密码更改操作，因为多次错误地指定了原始密码。

原因

在系统上未成功更改密码。该监视器允许系统管理员跟踪对密码所做的更改。

解决方法

警报和/或输出数据项的描述包含有关遇到的事件的信息。如果活动显得可疑，请检查关联的事件详细信息以及此事件时间附近发生的任何其他事件。

Element properties:

TargetMicrosoft.ACS.Linux.SLES.11.ACSEndPoint
CategoryEventCollection
EnabledTrue
Alert GenerateFalse
RemotableTrue

Member Modules:

ID Module Type TypeId RunAs 
EventDS DataSource Microsoft.Unix.SCXLog.Privileged.Datasource Default
WA WriteAction Microsoft.ACS.Unix.SecureEventLogWriter Default

Source Code:

<Rule ID="Microsoft.ACS.Linux.SLES.11.Password.Change.Maximum.Tries" Enabled="true" Target="Microsoft.ACS.Linux.SLES.11.ACSEndPoint" Remotable="true">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="EventDS" TypeID="Unix!Microsoft.Unix.SCXLog.Privileged.Datasource">

      <Host>$Target/Host/Property[Type="Unix!Microsoft.Unix.Computer"]/NetworkName$</Host>

      <LogFile>/var/log/messages</LogFile>

      <!-- [TYPE] SUSE Password False -->

      <!-- [INPUT] Oct 19 09:58:51 scxcr-sles11-03 passwd[5590]: User jeffcof: Have exhausted maximum number of retries for service -->

      <!-- [EXPECTED] date="Oct 19 09:58:51"; hostname="scxcr-sles11-03"; process="passwd"; processId="5590"; user="jeffcof" -->

      <RegExpFilter>\s+passwd\[[[:digit:]]+\]: User \S+: Have exhausted maximum number of retries for service</RegExpFilter>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WA" TypeID="ACS.Unix!Microsoft.ACS.Unix.SecureEventLogWriter">

      <RegExp>(?'date'\S+\s+\d+\s+\d+:\d+:\d+)\s+(?:\S+:)?(?'hostname'\S+)\s+(?'process'passwd)\[(?'processId'\d+)]: User (?'user'\S+): Have exhausted maximum number of retries for service</RegExp>

      <EventType>0</EventType>

      <EventId>27004</EventId>

      <BackrefOverrides>sessionName="Password not changed"</BackrefOverrides>

    </WriteAction>

  </WriteActions>

</Rule>