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The Photon operating system must terminate idle Secure Shell (SSH) sessions after 15 minutes.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-258830PHTN-40-000069SV-258830r970703_ruleCCI-001133medium
Description
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. Terminating network connections associated with communications sessions includes, for example, deallocating associated TCP/IP address/port pairs at the operating system level, and deallocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. This does not mean that the operating system terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session. Satisfies: SRG-OS-000163-GPOS-00072, SRG-OS-000395-GPOS-00175
STIGDate
VMware vSphere 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide2026-06-02

Related Frameworks

2 mappings across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MNT-05.4Remote Maintenance Disconnect Verification
1.00
NET-07Network Connection Termination
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (29) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-11Device Lock
1.00
AC-11(1)Pattern-hiding Displays
1.00
AC-12Session Termination
1.00
AC-12(2)Termination Message
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-7Unsuccessful Logon Attempts
1.00

+19 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.13.9
1.00
CCI2 mappings
CCI-001133
1.00
CCI-002891
1.00

Details

Check Text (C-258830r970703_chk)

At the command line, run the following command to verify the running configuration of sshd: # sshd -T|&grep -i ClientAliveInterval Example result: ClientAliveInterval 900 If there is no output or if "ClientAliveInterval" is not set to "900", this is a finding.

Fix Text (F-62479r933550_fix)

Navigate to and open: /etc/ssh/sshd_config Ensure the "ClientAliveInterval" line is uncommented and set to the following: ClientAliveInterval 900 At the command line, run the following command: # systemctl restart sshd.service