FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
Changes in v1.1
1. Split master document to place Streams 5-7 in a separate document
2. Updated Actions
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le name
e Browell
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
Contents
What’s New?...
Introduction & Overview...
The Goal.......
Purpose & Scope.
The Streams...
Stream 5 — Security Improvements.....
SecOps BAU...
Additional Items...
Actions...
System Changes.
One-Time Actions...
New Ways of Working...
Stream 6 — Elevated Access & Tooling.
Actions.
One-Time Actions.
Stream 7 — Various
Actions....
One-Time Actions....
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See file name
Steve Browell
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
What's New?
This document describes a number of changes to the Post Office Account ways of working and use
of systems. This section provides highlights but the entire document should be read to gather
awareness of all changes being implemented.
Our interactions needs to be system and process driven, not people and experience — and that will
create a clear audit trail too.
We need to limit the dependency on meeting-specific reports or embedded tables in minutes to show
progress on important matters.
Transparency is key — to the fullest sensible extent, POL need to see everything — and they need to
be able to see it in their systems or from consistent reports from our systems. That way, POL are
informed and able to make decisions for us or with us.
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1 & Last updated: See file n:
ent owner Steve Bre
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
Introduction & Overview
The Goal...
To implement the defined list of improvements in this document in substantive part by...
31° July 2021
...and to have completed all improvement including any early challenges and snags by
31% August 2021
Purpose & Scope
o Byrunning a series of Streams of work we will systematically drive improvements across
POA
o The Streams will likely overlap and may well change format as progress is made
o Although active participation in a Stream may be low for.some, it is critical that there is a
common understanding or we will not achieve cross functional change
Stream members may change over time
Each Stream will have a set of actions to complete = initially derived from this document
The team can add additional actions as needed
POA needs to urgently evolve to a cross functionally agreed set of ways of working so that it
can be explained to any interested party,withease
o Our interactions needs to be system and process driven not people and experience — and
that will create a clear audit trail too
o Weneed to limit the dependency on meeting-specific reports or embedded tables in minutes
to show progress on important matters
o Transparency is key — to the fullestsensible extent, POL need to see everything — and they
need to be able to see it in their systems or from consistent reports from our systems. That
way, POL are informed and.able to make decisions for us or with us
o We need to agree'the functions of the various platforms and meetings to ensure it all joins up
(this document is astart)
co If POL is»tracking it — or applying governance to it — then so should we — and our process
should be in advance of theirs so we have no surprises
o We.do not have all the tools and integrations we would like, so the goal is to make the best
possibleuse of what we have already
o Weneed to protect our internal systems from a need for routine disclosure — so we can work
our way
o We need to ensure any POL desires on our ways of working relate to contracted obligations
and suit how our systems and people work — unless we are commissioned to change any of
those — as this is more likely to be consistent and reliable
o For this to succeed we need considerable cross functional support coupled with manager and
team member engagement
0000
The Streams
e Stream 5 - Security Improvements
e Stream 6 - Elevated Access & Tooling
e = Stream 7 - Various
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Version & Last updated: See file n
Document owner Steve Bre
FUJ00232724
FUJ00232724
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
Each Stream documents the key elements that reinforce an existing way of working or state a new
way of working. This content will be embedded into existing account documents for it to be
formalised. Each Stream will then contain references to any System Changes made (optional), the
One-Time Actions needed to move to the defined ways of working, and then the New Ways of
Working that will describe what is different from how things are done today.
Actions that have been completed are scored out. The One-Time Actions that are underway at the
moment are highlighted in green although some of the other actions may also be partly active too.
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See file nan
Steve B
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
Stream 5 — Security Improvements
o Team — Geoff Baker & Jason Muir
SecOps BAU
o Priority - Geoff
e Validate PAM roles for Belfast teams. The superuser roles should be the minimum
possible to achieve the operational responsibilities
e Ensure current levels of logging meet MSCF and contract obligations
e Shore up the internal PAM monthly verification processes, and add,a report and
governance for ISM and CISO review
e All POA users must be reminded that they must follow the account UAM and PAM
processes
e Review SVM/SEC/PRO/0012 and check that the 57 RBAC entries are still correct
despite it saying last reviewed 19/08/2020
e JML form does not link clearly to ROLE and RBAC
e Account creation - Wintel & other account creation functions should not use cloning
e Define reports and audience (perhaps all.PAM roles) — what do SecOps actually
track
« Define governance to be applied — what do SecOps check is ok and action
« Update all related documents on‘UAM’and PAM - and contract documents if needed -
SVM/SEC/PRO/0006
Additional Items
co Priority- Jason
. tlexplai liantadmi ts that cont tion-of-duty-rul
is pI Greg ¥
(to-EBMS)
= Auser account that has admin rights that is used for non-admin activities
meaning,there could be accidental use of elevated privileges
« «Basedon clarification we have none in this category
e Establish’a central register of shared, break-glass and local admin accounts —
records of and management of (discovery and processes). Arrange call with Jill
Smyth, Andy Gibson, John Bradley, Chris Harrison, Gerald Barnes, Geoff Baker,
Andy Hemmingway, Tariq Arain, Matt Swain cc: Steve Bansal, Simon Wilson,
Graham Allen
= Consider..
e Upgrade KeePass to commercial version/better solution
e Add KeePass content to weekly report
= Action
«Arrange the call
© Confi ing-of the PCI pen test obligations in the Security Service Descripti
o TBC
e Look into additional logging, reporting and review of Remote Connectivity activity —
or describe ‘as is’ and seek agreement
e Investigate the use of the remote Syslog server and determine if any logging should
be directed to Netcool. Capacity issues may limit options
= 23.07
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Version & Last updated See file n
Document owner Steve Bre
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
ad
RE Syslog
Netcool.msg
e All of the network (incl. firewall) logs are sent to the Syslog servers.
This is good for two reasons: 1) It is best practice to keep your logs
off the security platform that may be compromised then it is not easy
for the adversary to delete the logs to cover their tracks and 2)
Having a central log store makes applying SIEM type intelligence
(and doing debugging) easier than having to collect it directly.
« Netcool was never sized to handle the network logs»so it/only
collects what it considers are “interesting” events: You probably
recall that we had similar issues with the Linux,and Windows logs
under HDCR when we increased the logging to capture forensic
detail but Netcool / Tivoli couldn’t cope withthe volume. And of
course, Post Office have rejected funding a proper SIEM solution.
«Therefore, we have a lot of network security information in the
Syslog servers but it is not monitored.or analysed for issues.
e =Action
o What is “interesting” — John Bradley says it is not
documented but is in.a baseline
= We filter out by exception and Jason is waiting for
this
".e@Neeéd tor¢heck this doesn’t exclude things we want to
cover
=), What's we keep goes to Netcool and to Audit
Archive
o ~How long do we keep the syslog events for?
"Forever if in Audit Archive
e Counter access — why are counters accessed so frequently, should access be on
request not by default to protect our staff and the company from incorrect
accusations.
* Action
« We need to restrict RCA capability to escalate privileges
« We need to confirm that RCA commands are read only
« We need to confirm with CC that the user account on the counter are
read only
o All documented in DES/GEN/SPE/2745
Actions
System Changes
o TBC
One-Time Actions
Priority
1.
Belfast teams creating new granular specific admin roles and assigning team to more
specific responsibilities. Impact has been a reduction of admin rights from 56 to 34.
Implemented monthly (weekly) verification
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Version & Last updated: See file name
Document owner Steve Browell
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
b. DONE
New Ways of Working
1. Geoff - PAM verification process to be’reported on monthly within SecOps governance (to
include routine validation of superuser roles)
2. Geoff — operate the monthly PAM verification process to a higher-level of rigour
3. SecOps — Maintain records of all shared/service/local admin accounts and spot check the
processes around them
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Version & Last updated: See file name
Document owner: Steve Browell
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
Stream 6 — Elevated Access & Tooling
o Team - Varied. Mostly a one-time action stream
Actions
One-Time Actions
APPSUP
1.
2. Adam - Ensure 4 eyes/peer review happens - NWH or OOH
3. Steve Br — Amend both organisations’ Change Control documents to show APPSUP is
allowed out of process
APPSUP — non-BRDB
1.
2.
3. Steve Br — Notify POL of action taken
Interface Interactions Logging
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Version & Last updated: See file name
Document owner: Steve Browell
FUJ00232724
FUJ00232724
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
Stream 7 — Various
o Team - Varied. Mostly a one-time action stream
Actions
One-Time Actions
Historical Investig
process
3. Steve Br — All staff must realise the need to demand a TfSNow ticket is.raised’by POL
(hence the above intercept will apply) — it cannot come in via email only
Monthly SMR pack
1. Steve Ba/Sandie — Limited Incident data - add trending and patterns
Steve Ba/Sandie — Highlights page is largely of no value
Steve Ba/Sandie — Some cumulative failures are not carried forward in stats columns
Steve Ba/Sandie — We embed minutes of other meetings and list Incidents - it's overly
padded
5. Steve Ba/Sandie — Needs to add links to HDR Defects,
PON
Peripheral Key Logger :
1. Steve Br — Decommission functionality as,notused
e Steve Browell asked Dean Bessell again on Thursday 24th June 2021 to check with
Lorna Owens and get.us a decision. CBIF 12.07.2021 has shown some POL
confusion that will be addressed at CBIF 19.07.2021
Documentation
1. Steve Br/Matt L —- We need to get all fundamental content gaps identified and actions
assigned
¢ Outstanding-CCD actions
e Service Descriptions
¢ Referenced documents in the contract
2. Steve Br/Matt L — Document list:
a), Security Service Description SVM/SDM/SD/0017
b) Governance Schedule A2 — names, chair and scope of meetings
cc) ,ASM Schedule 12 - BIF definition, Peak and KB proprietary references, POL KB
references for approved BEDs
d) Testing Strategy - 0936 document
e)
f) The CBA document Simon mentioned had the wrong Windows version in it
g) SVM/SDM/SD/0003 - DC Ops SD - states plans we should be creating [looks to be
ok — Steve Br to double check]
h) Change Control to mention APPSUP-
i) Application Support Strategy to mention Peak and Live Defect Management
Governance Meetings
1.
2.
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Version & Last updated: See file name
Document owner: Steve Browell
POA Improvements — Streams 5-7
Improved Ways of Working & Actions Required
FUJITSU CONFIDENTIAL — INTERNAL USE ONLY (POA ONLY)
3. Steve Br/Dan — Working list of key meetings (POL attempting to lead on this):
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a)
b)
c)
dq)
Governance Meeting (Supplier Meeting)
Demand Planning
RAM/RAB
Change Control
FUJ00232724
FUJ00232724