Check: GEN004560
HP-UX 11.31 STIG:
GEN004560
(in versions v1 r19 through v1 r13)
Title
The SMTP service's SMTP greeting must not provide version information. (Cat III impact)
Discussion
The version of the SMTP service can be used by attackers to plan an attack based on vulnerabilities present in the specific version.
Check Content
To check for the Sendmail version being displayed in the greeting: # telnet localhost 25 If a version number is displayed, this is a finding.
Fix Text
Ensure Sendmail or its equivalent has been configured to mask the version information. If necessary, change the O SmtpGreetingMessage line in the /etc/sendmail.cf file as noted below: O SmtpGreetingMessage=$j Sendmail $v/$Z; $b change it to: O SmtpGreetingMessage= Mail Server Ready ; $b Then restart the Sendmail service.
Additional Identifiers
Rule ID: SV-38436r1_rule
Vulnerability ID: V-4384
Group Title: GEN004560
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |