STIGQter: STIG Summary: Solaris 10 X86 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 22 Jan 2021:

The SMTP service HELP command must not be enabled.

DISA Rule

SV-220099r603266_rule

Vulnerability Number

V-220099

Group Title

SRG-OS-000480

Rule Version

GEN004540

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

To disable the SMTP HELP command, clear the Sendmail help file.
# echo > /etc/mail/helpfile

Check Contents

Check if Help is disabled in Sendmail.

Procedure:
# telnet <host> 25
> help

If the help command returns any Sendmail version information, this is a finding.

If telnet is unavailable for testing, check the value of the HelpFile parameter in the sendmail.cf file.

# grep HelpFile /etc/mail/sendmail.cf

If the contents of the file indicated by the HelpFile parameter contains any Sendmail version information, this is a finding.

Vulnerability Number

V-220099

Documentable

False

Rule Version

GEN004540

Severity Override Guidance

Check if Help is disabled in Sendmail.

Procedure:
# telnet <host> 25
> help

If the help command returns any Sendmail version information, this is a finding.

If telnet is unavailable for testing, check the value of the HelpFile parameter in the sendmail.cf file.

# grep HelpFile /etc/mail/sendmail.cf

If the contents of the file indicated by the HelpFile parameter contains any Sendmail version information, this is a finding.

Check Content Reference

M

Target Key

4061

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