3.2.2.1: Unix: Difference between revisions

From HORSE - Holistic Operational Readiness Security Evaluation.
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'''1 Risk: Unauthorized access attempts go unnoticed.'''<br>
:a. [[SOX.4.2.1.1:|'''SOX.4.2.1.1''']] UNIX authentication attempts are limited to attempts specified by the Corporate IT standard.<br>
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'''2. Risk: Unauthorized execution of privileged system commands may disrupt business processes, and corrupt critical business data stores.'''<br>
:a. [[SOX.4.2.1.2:|'''SOX.4.2.1.2''']] UNIX administrator level access is password restricted and is limited to the designated UNIX administrators only.<br>
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'''3. Risk: Unscheduled access by support vendors may result in business process interruptions or loss of production data.'''<br>
:a. [[SOX.4.2.1.3:|'''SOX.4.2.1.3''']] UNIX access by support vendors is granted through a service request.<br>
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'''4. Risk: Unauthorized users might exploit privileged access to critical business processes and data.'''<br>
:a. [[SOX.4.2.1.4:|'''SOX.4.2.1.4''']] New UNIX user accounts are pre-expired.<br>
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'''5. Risk: Unauthorized users might exploit unauthorized access to critical business processes and data.'''<br>
:a. [[SOX.4.2.1.5:|'''SOX.4.2.1.5''']] The UNIX operating application has a session "Time-Out" function enabled.<br>
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'''6. Risk: Unnecessary disruptions to business processes or data corruption may occur.'''<br>
:a. [[SOX.4.2.1.6:|'''SOX.4.2.1.6''']] UNIX rule changes are scheduled during maintenance windows.<br>
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'''7. Risk: Unidentifiable users may compromise critical business processes and data.'''<br>
:a. [[SOX.4.2.1.7:|'''SOX.4.2.1.7''']] The UNIX system will not allow identical administrator IDs.<br>
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'''8. Risk: Insufficient security standards may allow unauthorized access to production systems and business data stores.'''<br>
:a. [[SOX.4.2.1.8:|'''SOX.4.2.1.8''']] UNIX passwords are required for each system ID. Password configuration is based on Corporate IT standards.<br>
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'''9. Risk: Inappropriate administrative actions are executed without accountability measures.'''<br>
'''9. Risk: Inappropriate administrative actions are executed without accountability measures.'''<br>
:a. SOX.4.2.1.9: The UNIX operating system application has forensic auditing enabled to enable the monitoring of administrative access related events.<br>
:a. [[SOX.4.2.1.9:|'''SOX.4.2.1.9''']] The UNIX operating system application has forensic auditing enabled to enable the monitoring of administrative access related events.<br>
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'''Testing Procedures'''
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Obtain a copy of an automatic notification message produced by the system being tested to verify that the security administrators are being proactively notified of possible access violations.<br>


An example might be a monitoring background process that sends an electronic message to the security administrative group automatically when root access occurs. The email message will provide a date, time, source, destination, and responsible entity to satisfy compliance requirements.<br>
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<br>
'''10. Risk: Reactive security monitoring results in data compromise and financial loss or liability.'''<br>
:a. [[SOX.4.2.1.10:|'''SOX.4.2.1.10''']] UNIX administration team is notified when security violations occur.<br>
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'''11. Risk: Forensic evidence is not available to resolve malfunctions, compromises or other security compromising incidents.'''<br>
:a. [[SOX.4.2.1.11:|'''SOX.4.2.1.11''']] The UNIX administration team reviews security logs looking for security violations.<br>
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'''12. Risk: Unauthorized access is granted to business systems or data stores.'''<br>
:a. [[SOX.4.2.1.12:|'''SOX.4.2.1.12''']] UNIX access is granted through a service request.<br>
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'''13. Risk: Unauthorized access may occur resulting in business data compromise or destruction.'''<br>
:a. [[SOX.4.2.1.13:|'''SOX.4.2.1.13''']] Terminations are sent through the HR process. An Email is sent from HR with all terminations to the UNIX system administrators.<br>
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'''Testing Frequency'''
 
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Semi- Annual validation of all systems within scope.
'''14. Risk: Insufficient security standards may allow unauthorized access to production systems and business data stores.'''<br>
<br>
:a. [[SOX.4.2.1.14:|'''SOX.4.2.1.14''']] UNIX password expiration is set to Corporate IT standards.<br>
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'''Evidence Archive Location'''
 
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Insert hyperlink or location of evidence archive.
'''15. Risk: Security violations or data corruption may occur with no forensic evidence available to resolve the situation.'''<br>
<br>
:a. [[SOX.4.2.1.15:|'''SOX.4.2.1.15''']] UNIX rules and logging is applied to everyone equally including system administrators.<br>
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'''Control Stewards Process Narrative'''
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Currently, no active notification of security violations occurs. If there is suspicion of activity, IT Security would work with the Systems Software group to access to security logs on each AIX host.


<br>
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'''Control Steward – Steve Somebody'''
'''16. Risk: Unauthorized access (i.e. terminated employees) may occur.'''<br>
<br>
:a. [[SOX.4.2.1.16:|'''SOX.4.2.1.16''']] A semi-annual revalidation of UNIX administrator accounts are performed by security administration.<br>
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'''Process Illustration'''
 
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Replace this test by inserting a process diagram, flowchart or other visual representation to illustrate the process narrative as necessary. Include a brief description of the process illustration.
'''17. Risk: Unauthorized execution of privileged system commands may disrupt business processes, and corrupt critical business data stores.'''<br>
<br>
:a. [[SOX.4.2.1.17:|'''SOX.4.2.1.17''']] Root level access is password restricted. This password is know only by system the administrators.<br>
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'''Control Status and Auditors Commentary'''
 
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The control is not effective at this time because automatic system alerts are not being generated to provide effective proactive security event alerts to the security administrators.<br>
'''18. Risk: Unauthorized users could elevate their access to privileged file systems.'''<br>
<br>
:a. [[SOX.4.2.1.18:|'''SOX.4.2.1.18''']] The /etc/default/login UMASK 027 parameter is enabled.<br>
[[Image:redlock.jpg]]<br>
<br>
Creating simple monitoring shell scripts or implementing a commercial solution is advised.
<br>
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'''Control Exception Commentary'''
 
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Status in not acceptable.
'''19. Risk: Unauthorized personnel gain access to the application through remote access.'''<br>
<br>
:a. [[SOX.4.2.1.19:|'''SOX.4.2.1.19''']] The /etc/default/login CONSOLE parameter is enabled.<br>
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'''Remediation Plan'''
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Implement a CRON driven shell script to monitor activity logs. Alert activity should be proactively forwarded to security administrators as these events occur ideally through electronic mail. The security administrator should investigate suspect activities and document any findings. This action report should be archived for compliance testing purposes.


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[[Image:Key-control.jpg]]<br>
<br>
<br>
'''20. Risk: Controls provide reasonable assurance that the systems are appropriately tested and validated prior to being placed into production processes, and associated controls operate as intended and support financial reporting requirements.'''<br>
:a. [[SOX.5.4:|'''SOX.5.4''']] A testing strategy is developed and followed for all significant changes in applications and infrastructure technology, which addresses unit, system, integration and user-acceptance-level testing so that deployed systems operate as intended.<br>
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--[[User:Mdpeters|Mdpeters]] 09:44, 23 June 2006 (EDT)

Latest revision as of 13:44, 23 June 2006

1 Risk: Unauthorized access attempts go unnoticed.

a. SOX.4.2.1.1 UNIX authentication attempts are limited to attempts specified by the Corporate IT standard.


2. Risk: Unauthorized execution of privileged system commands may disrupt business processes, and corrupt critical business data stores.

a. SOX.4.2.1.2 UNIX administrator level access is password restricted and is limited to the designated UNIX administrators only.


3. Risk: Unscheduled access by support vendors may result in business process interruptions or loss of production data.

a. SOX.4.2.1.3 UNIX access by support vendors is granted through a service request.


4. Risk: Unauthorized users might exploit privileged access to critical business processes and data.

a. SOX.4.2.1.4 New UNIX user accounts are pre-expired.


5. Risk: Unauthorized users might exploit unauthorized access to critical business processes and data.

a. SOX.4.2.1.5 The UNIX operating application has a session "Time-Out" function enabled.


6. Risk: Unnecessary disruptions to business processes or data corruption may occur.

a. SOX.4.2.1.6 UNIX rule changes are scheduled during maintenance windows.


7. Risk: Unidentifiable users may compromise critical business processes and data.

a. SOX.4.2.1.7 The UNIX system will not allow identical administrator IDs.


8. Risk: Insufficient security standards may allow unauthorized access to production systems and business data stores.

a. SOX.4.2.1.8 UNIX passwords are required for each system ID. Password configuration is based on Corporate IT standards.


9. Risk: Inappropriate administrative actions are executed without accountability measures.

a. SOX.4.2.1.9 The UNIX operating system application has forensic auditing enabled to enable the monitoring of administrative access related events.


10. Risk: Reactive security monitoring results in data compromise and financial loss or liability.

a. SOX.4.2.1.10 UNIX administration team is notified when security violations occur.


11. Risk: Forensic evidence is not available to resolve malfunctions, compromises or other security compromising incidents.

a. SOX.4.2.1.11 The UNIX administration team reviews security logs looking for security violations.


12. Risk: Unauthorized access is granted to business systems or data stores.

a. SOX.4.2.1.12 UNIX access is granted through a service request.


13. Risk: Unauthorized access may occur resulting in business data compromise or destruction.

a. SOX.4.2.1.13 Terminations are sent through the HR process. An Email is sent from HR with all terminations to the UNIX system administrators.


14. Risk: Insufficient security standards may allow unauthorized access to production systems and business data stores.

a. SOX.4.2.1.14 UNIX password expiration is set to Corporate IT standards.


15. Risk: Security violations or data corruption may occur with no forensic evidence available to resolve the situation.

a. SOX.4.2.1.15 UNIX rules and logging is applied to everyone equally including system administrators.


16. Risk: Unauthorized access (i.e. terminated employees) may occur.

a. SOX.4.2.1.16 A semi-annual revalidation of UNIX administrator accounts are performed by security administration.


17. Risk: Unauthorized execution of privileged system commands may disrupt business processes, and corrupt critical business data stores.

a. SOX.4.2.1.17 Root level access is password restricted. This password is know only by system the administrators.


18. Risk: Unauthorized users could elevate their access to privileged file systems.

a. SOX.4.2.1.18 The /etc/default/login UMASK 027 parameter is enabled.


19. Risk: Unauthorized personnel gain access to the application through remote access.

a. SOX.4.2.1.19 The /etc/default/login CONSOLE parameter is enabled.




20. Risk: Controls provide reasonable assurance that the systems are appropriately tested and validated prior to being placed into production processes, and associated controls operate as intended and support financial reporting requirements.

a. SOX.5.4 A testing strategy is developed and followed for all significant changes in applications and infrastructure technology, which addresses unit, system, integration and user-acceptance-level testing so that deployed systems operate as intended.

--Mdpeters 09:44, 23 June 2006 (EDT)