How to Manage a Contamination Incident - dss.mil€¦ · How to Manage a Contamination Incident...
Transcript of How to Manage a Contamination Incident - dss.mil€¦ · How to Manage a Contamination Incident...
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How to Manage a Contamination Incident
Defense Security Service Carolyn Shugart
Information Technology SpecialistStandards & Quality Branch
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Objectives
• Define a compromise• Define a contamination• Describe the causes of a contamination• Discuss preparing an ad hoc team• Review steps for conducting an
Administrative Inquiry• Review reporting requirements • Discuss cleanup considerations
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What is a compromise?
• The disclosure of classified informationto an unauthorized person
SECRET
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What is a contamination?
• When classified information is processed on a non-accredited IS
OOPS
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How does this happen?
• Change in classificationlevel
• Unsecure transmission
• Accidental / intentional use of non-accredited equipment
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How does this happen?
•Unaccredited System with internal hard drive•Cleared employee saves to floppy•A temporary file created on internal hard drive then automaticallydeleted.
(S) Sssssssssssssssssssss(S) Sssssssssssssssssssss(S) Sssssssss
Secret
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How does this happen?
UnclasUnclasSecret
1. “Track Changes” are hidden 2. Unclassified Extractionwww.dss.mil/infoas/index.htm
(U) Uu uuuuu uu uuuu uu.
(S) Ssss s ssss. Ssss ssss.
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How does this happen?
Secret
Compilation creates classified
(U) Uu uuuuu uu uuuu uu.
(U) Ssss s ssss. Ssss ssss.
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S U
How does this happen?
S S
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Attitudes can be a factor!Attitudes can be a factor!
People not following the rulesConfusionToo busy to follow the rulesIndifferenceIt can’t happen hereIt cost too much Everyone else does it
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Before it happens, build an ad hoc team!
• No regular meetings • SysAdmins proficient
in each operating system
• SysAdmin proficient in email system
• Someone proficient in RAID drives
• Security RepRAID = Redundant Array of Independent Disks
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Conducting an Administrative Inquiry!
• Investigate the loss, compromise, or suspected compromise of classified information
NISPOM Para 1-303
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•
Conduct a preliminary inquiry!
Conduct immediately
• Identify W5H, determine extent
• “Did a loss, compromiseor suspected compromiseoccur?”
What happened?
NISPOM Para 1-303a
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Is there a loss, compromise, or suspected compromise?
• Loss: material can’t be located within a reasonable period of time
• Compromise: disclosure to unauthorized person(s)
• Suspected compromise: when disclosure can’t be reasonably precluded
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•
Now what should be done?
Assemble ad hoc team
• Physically isolate, protect all contaminated equipment
• Remove unauthorized people
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What should be done? (cont.)
• Call your Defense Security Service (DSS) IS Rep and/or ISSP*
• Contact your customer, the data owner
• DO NOT DELETE DATA YET!
* Information Systems Security Professional
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DO NOT DELETE THE FILE!!
“Would youtake care of this for me!”
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What will DSS do?
• Help you limit further systems from being contaminated.
• Work with you on sanitizing all infected systems.
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What are important facts?
• What platforms and O/Ss are involved?• Are there any remote dial-ins• Are there any other network connections?• At what locations was the file or e-mail
received (e-mail servers) or placed?• Was the data encrypted? • Was the file deleted?• Is there RAID technology involved?
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What about an email server?
• What type of email system is involved?• Is System Administrator cleared?• Ensure areas where deleted files are
retained are addressed, e.g., MS Exchange’s deleted item recovery container).
MS Exchange is discussed because of its widespread use. DSS does not endorse any products.
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A B
S
Forget any components?
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Follow through!
• Gather and review Audit Trails that are applicable– Paper– Electronic
• Interview all people known to be involved
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And finally…
• Write and submit the final report (Paragraph 1-303c, NISPOM)
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Follow available guidance!
• NISPOM AI Report Requirements (Paragraph 1-303)
• DSS Guidance for Conducting an AI
• Clearing and Sanitization Matrix
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And don’t forget to
• Protect classified media• Sanitize/clear the system components• Write the report
SECRET
SECRET
SECRET DSS
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Report suspenses!
• Initial - “promptly submit” (72 hours)
• Final - investigation is complete (15 days)
NISPOM Para 1-303b,c
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One last thing…
• Send details to government customer to include cleanup action
• Include hardware and operating system platforms
• Request they provide additional cleanup steps within 30 days
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Summary
• What causes contaminations• Possible cleanup considerations• Reporting requirements
NISPOM Para 8-103b,c