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V-282565

CAT II (Medium)

TOSS 5 must encrypt the transfer of audit records off-loaded onto a different system or media from the system being audited via rsyslog.

Rule ID

SV-282565r1201620_rule

STIG

Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-001851

Discussion

Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. TOSS 5 installation media provides "rsyslogd", a system utility providing support for message logging. Support for both internet and Unix domain sockets enables this utility to support both local and remote logging. Coupling this utility with "gnutls" (a secure communications library implementing the SSL, TLS, and DTLS protocols) creates a method to securely encrypt and off-load auditing. Rsyslog-supported authentication modes include: anon - anonymous authentication x509/fingerprint - certificate fingerprint authentication x509/certvalid - certificate validation only x509/name - certificate validation and subject name authentication

Check Content

Verify TOSS 5 encrypts audit records off-loaded onto a different system or media from the system being audited via rsyslog using the following command:

$ sudo grep -i '$ActionSendStreamDriverMode' /etc/rsyslog.conf /etc/rsyslog.d/*.conf 

/etc/rsyslog.conf:$ActionSendStreamDriverMode 1 

If the value of the "$ActionSendStreamDriverMode" option is not set to "1" or the line is commented out, this is a finding.

Fix Text

Configure TOSS 5 to encrypt off-loaded audit records via rsyslog by setting the following options in "/etc/rsyslog.conf" or "/etc/rsyslog.d/[customfile].conf":

$ActionSendStreamDriverMode 1