Alert rule for detection of Root Password via SSH Authentication
Direct login using the root account password detected.
Users may have been granted access to privileged accounts. This alerting rule allows system administrators to track direct logins using the root account password.
The description of the alert and/or the output data item contains information on the event encountered. If this event appears suspicious, check the associated event details and any other events that happened around the time of this event.
Target | Microsoft.Linux.RHEL.7.Computer | ||
Category | EventCollection | ||
Enabled | True | ||
Alert Generate | True | ||
Alert Severity | Information | ||
Alert Priority | Normal | ||
Remotable | True | ||
Alert Message |
|
ID | Module Type | TypeId | RunAs |
---|---|---|---|
EventDS | DataSource | Microsoft.Unix.SCXLog.Privileged.Datasource | Default |
GenerateAlert | WriteAction | System.Health.GenerateAlert | Default |
<Rule ID="Microsoft.Linux.RHEL.7.LogFile.Syslog.Root.SSHAuth.Password.Alert" Target="Microsoft.Linux.RHEL.7.Computer" Enabled="true" Remotable="true">
<Category>EventCollection</Category>
<!-- [TYPE] Redhat7 SSH True -->
<!-- [INPUT] Dec 6 00:57:45 scxcrd64-rhel7-01 sshd[14769]: Accepted password for root from 10.217.5.101 port 52268 ssh2 -->
<!-- [INPUT] Jul 31 20:04:31 scxcrd64-rhel7-01 sshd[16729]: Accepted publickey for root from 172.30.182.25 port 35550 ssh2 -->
<!-- [INPUT-MISS] Dec 6 01:49:37 scxcrd64-rhel7-01 sshd[15053]: Accepted password for zoyang from 172.30.170.58 port 18320 ssh2 -->
<DataSources>
<DataSource ID="EventDS" TypeID="Unix!Microsoft.Unix.SCXLog.Privileged.Datasource">
<Host>$Target/Property[Type="Unix!Microsoft.Unix.Computer"]/PrincipalName$</Host>
<LogFile>/var/log/secure</LogFile>
<RegExpFilter>\s+sshd\[[[:digit:]]+\]: Accepted \S+ for root from \S+</RegExpFilter>
<IndividualAlerts>false</IndividualAlerts>
</DataSource>
</DataSources>
<WriteActions>
<WriteAction ID="GenerateAlert" TypeID="SystemHealth!System.Health.GenerateAlert">
<Priority>1</Priority>
<Severity>0</Severity>
<AlertMessageId>$MPElement[Name="Microsoft.Linux.RHEL.7.LogFile.Syslog.Root.SSHAuth.Password.AlertMessage"]$</AlertMessageId>
<AlertParameters>
<AlertParameter1>$Data/EventDescription$</AlertParameter1>
</AlertParameters>
<Suppression>
<SuppressionValue/>
</Suppression>
</WriteAction>
</WriteActions>
</Rule>