Check: TSS0-FT-000080
IBM z/OS TSS STIG:
TSS0-FT-000080
(in versions v8 r13 through v7 r1)
Title
IBM z/OS FTP.DATA configuration for the FTP server must have the INACTIVE statement properly set. (Cat II impact)
Discussion
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element.
Check Content
Refer to the file specified on the SYSFTPD DD statement in the FTP started task JCL. If the INACTIVE statement is coded with a value greater than "600", this is a finding. If the INACTIVE statement is coded with a value of "0", this is a finding. If there is no INACTIVE statement coded or the INACTIVE statement is commented out, this is a finding.
Fix Text
Code the FTPD configuration file to include the INACTIVE statement with a value between "1" and "600".
Additional Identifiers
Rule ID: SV-223980r877821_rule
Vulnerability ID: V-223980
Group Title: SRG-OS-000163-GPOS-00072
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-001133 |
The information system terminates the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity. |
Controls
| Number | Title |
|---|---|
| SC-10 |
Network Disconnect |