1. Washington State Patrol
NCIC 2000 ACCESS Encryption Project
Task Order 2 – Design
Task 2a – Risk Assessment Report
August 16, 2005

2. Background
The National Crime Information Center (NCIC), originally established in 1967, is the
most extensive criminal justice information system in the US and is maintained by the
FBI.
Its successor, NCIC 2000 now includes requirements for all CJIS data to be encrypted
between regional sites and the WSP ACCESS messaging system.
In accordance with the FBI’s Criminal Justice Information Service (CJIS)
Division Security Policy v4.1, all CJIS data transmitted through any public
network segment or Internet connections shall be encrypted by a pair of secret
keys, each with a minimum of 128 bits. Each cryptographic module, used for this
purpose, must be certified by the National Institute of Standards and
Technology’s (NIST) Computer Systems Laboratory to ensure that it meets the
standards set forth in Federal Information Processing Standards (FIPS)
Publication 140-2, “Security Requirements for Cryptographic Modules”.
I. Scope Statement
This report deals entirely with risks relating to the deployment and maintenance of an
encryption structure, designed to secure communication from regional sites to the WSP
ACCESS messaging system. The implementation of the encryption-decryption
architecture will introduce new potential threats and vulnerabilities, both physical and
procedural. These issues will be addressed in this document.
II. Vulnerability and Threat Identification
This section is concerned with the process used to identify threats, issues, concerns, risks
etc. Risk is defined as the possibility of a threat exploiting a vulnerability and thereby
causing harm to an asset. The threat will exploit the vulnerability to compromise one or
more of the principles previously mentioned:
• Confidentiality means that information is protected from being read or copied by
anyone who does not have permission of the owner of that information.
• Integrity means that information is not deleted or altered in a way that will cause
damage or disruption.
• Availability means that information should be protected so that it is readily
available to those with proper authorization.
• Non-repudiation means that an individual should not be able to deny having
received or sent information.
The following formula is one way of measuring risk:
• Risk = threat × vulnerability × impact
The key terms are risk, threat, vulnerability and impact. Without a threat agent, a
vulnerability, or an impact, there is no risk. There must be a threat agent to exploit a
vulnerability, and this exploitation must cause an impact for there to be a risk to the
organization. Relevant definitions include:

3. • Threat - The capabilities and intentions of adversaries to exploit an information
system; or any natural or unintentional event with the potential to cause harm to
an information system, resulting in a degradation of an organization’s ability to
fully perform its mission.
• Vulnerability - A characteristic of an information system or its components that
could be exploited by an adversary, or harmed by a natural act or an act
unintentionally caused by human activity
• Impact – The result of a particular threat exploiting a particular vulnerability.
• Risk – The probability that a particular threat will exploit a particular
vulnerability.
• Safeguard – Any protective action, device, procedure, technique, or other
measure that reduces exposures. Safeguard, in this context, is synonymous with
countermeasure.
There are three types of device interfaces referred to in this section:
• Public Interface points to any untrusted network.
• Private Interface points to any trusted network
• Management Interface can either be the console or a private Ethernet interface.
This section is devoted to identifying vulnerabilities that might be present in the NCIC
2000 Encryption Project and the potential of a given threat agent exploiting one of these
vulnerabilities, thereby constituting a risk. These include:
• Network Latency and Jitter– Latency indicates that the network is prone to
delay. Jitter refers to an unpredictable variation in the time between packets
arriving. Network congestion is, in this instance, the risk agent, which, when it
exploits latency or jitter, could lead to the dropping of packets, jeopardizing
availability.
• Single Point of Failure – The absence of redundant modules and/or devices
could be threatened by equipment failure whose impact could be unanticipated
downtime, again posing a risk to the availability of the infrastructure.
• Lax Physical Security – Poor physical security could make it possible for an
intruder, or even a disgruntled employee, to remove or damage an encryption
device. This could be the concentrator located at the WSP head end or a hardware
client located at a regional site. This would enable the thief to, at the least,
sabotage the encryption process and, at the worst, use the secret keys obtained to
access or tamper with sensitive information.
• Insecure Password Changing Mechanism – Cisco has pointed out that it is
relatively easy for any person with possessing the administrative password and
physical access to the console to change any password on a Cisco concentrator or
hardware client.
Combine this vulnerability with the lax physical security mentioned earlier, and
the threat agent, in this case, a malicious person could effectively sabotage the
encryption system.

4. • Password Non-recoverable Cisco warns that, for the VPN 3000 Series
Concentrator and the 3002 hardware client, there is no way to recover your
system if you forget the administrator password. In such a situation, the crypto-
officer who forgets the password is the threat agent. The impact is that the
concentrator or client has to be returned to Cisco so that the password can be
recovered. This could render the encryption system inoperable for an unspecified
period of time.
• Network Complexity – An increase in complexity between regional sites and the
WSP Data Center will make it more difficult to troubleshoot outages. The
troubleshooting problem can be seen as the threat agent causing an increase in the
Mean Time to Repair (MTTR). This could negatively impact the availability of
the ACCESS messaging system.
• Lax Access Control Mechanism – Access to the private interface could
compromise the data integrity of the messaging system. This vulnerability could
allow an unauthorized person, whether an intruder or an employee, to access,
block or tamper with sensitive data.
• Inadequate Crypto Officer Backup Mechanism - The role of Crypto Officer is
responsible for the configuration and maintenance of the concentrator. When the
person who usually assumes the Crypto Officer role is unavailable, it is essential
that the person designated as the replacement be fully trained and familiar with
the role. The threat agent, in this instance, in the unprepared person suddenly cast
into the role. The resulting risk is that this person could inadvertently
compromise the encryption system.
• Failure to Enforce the Policy of Least Privilege – Least privilege is a policy
that limits both the system’s users and processes to access only those resources
necessary to perform assigned functions. Ensuring least privilege requires
identifying what each user’s job is, outlining the minimum set of privileges
required to perform that job, and restricting the user to only those privileges on a
system/network.
Changing the role of a process or user, without changing the rights associated
with the role, is one manner of failing to enforce the policy of least privilege that
a threat agent can exploit. The more users or processes sharing these same rights,
the greater the chance that access by an uninformed or unscrupulous user or an
inappropriate process can result in denial of service, loss of confidentiality or
compromise of data.
Another failure to enforce the policy of least privilege can result from a
breakdown in communications between IT and HR. In such an instance, the
privileges of a former employee may not be removed in a timely fashion. In this
case, the threat agent is the former employee whose continued privileges could
result in deliberate sabotage of the encryption structure and the messaging system
(or in an unauthorized sharing of access information).
• Lack of Adequate Training – This is a vulnerability where the threat agent is a
new employee or an employee assigned an unfamiliar role. This could result in
mistakes that could put the ACCESS messaging system at risk. This also opens

5. the possibility of social engineering where a nefarious intruder is able to obtain a
password or other information from the inexperienced user.
• Elevation of Privileges – This vulnerability is similar to the previous two. The
abrupt increase in privileges without proper preparation, even when essential to
the functioning of a process or a user, can result in both mistakes and in
deliberate misuse of authority, either or which can put the system at risk.
• Unsecured Access to Management Interface – This vulnerability is the result
of weak control over the access to management interfaces. The threat agent is an
attack that could be mounted, resulting in unauthorized configuration changes.
• Misconfiguring the Assignment of Users to Groups presents a vulnerability
that can serve as an invitation to access the messaging system for a nefarious
purpose (Denial of Service (DoS) attack and compromise of sensitive data.)
• Inadequate or No Log Auditing. This is a vulnerability than can be exploited by
a threat agent, unauthorized access attempts. Such attempts may remain
undetected due to the failure to maintain adequate logs and could serve to
precede a brute force attack.
• Power Failure – The vulnerability of a facility power failure can be exploited by
the threat agent, the lack of an Uninterrupted Power Supply (UPS). This results in
the unavailability of the messaging and encryption systems on the 3030
concentrator and the 3002 client.
• Limited scalability – The internal database in the 3030 concentrator can support
a maximum of 100 groups and users. The threat agent, in this instance, is the
need to grow beyond the 100 group and user limit. Unless an external
authentication server is used, it will not be possible to add any more groups or
users.
• FIPS Standards Limiting WSP and Regional Sites to Firmware Known to be
Vulnerable In order to adhere to FIPS 140-2 standards, firmware for either the
3030 or the 3002 cannot be updated beyond the 3.6.7.F release. The threat agent
here is the exploits known to exist in the 3.6.7.F release. The result is a device
running firmware known to be vulnerable.
• Lack of Bandwidth – The threat agent that can exploit this vulnerability is an
increase in traffic. This will result in the loss of data.
• No Backup Configuration File in the 3030 Concentrator- The threat agent that
can exploit this vulnerability is data corruption caused by a device failure or other
difficulties. This results in excessive downtime brought about by the
concentrator’s inability to restore damaged files.

6. III. Risk Factor Determination
This section is concerned with the process used to determine the probability that a
specific threat might occur as well as its impact on the deployment and maintenance of
the encryption structure designed to secure the ACCESS messaging system
Each of the risks described in the section, “Vulnerability and Threat Identification” fall
into one or more of these categories:
• Policies and Procedures
Risk, in this context, is dependent upon the degree to which policies and
procedures, relating to the encryption-decryption process between regional sites
and ACCESS, are clearly defined and effectively implemented. To some degree,
every one of the risks characterized in the previous section is impacted by policies
and procedures.
• Physical Access
This involves the determination and enforcement of just who is able to gain
physical entry to the place where an encryption device is located. Related risks
include:
 Theft of an encryption device by an intruder or an employee
 Sabotaging the encryption system by changing the admin password. This
is fairly easy to accomplish if one has physical access to the encryption
device console or management interface.
• Configuration Issues
This relates to risks created by poorly planned or implemented encryption
equipment or infrastructure configuration. These include:
 The dropping of packets due to network congestion. This can be a result of
not taking latency and jitter issues into account in configuration planning
and implementation.
 Unavailability of the encryption infrastructure caused by unanticipated
downtime. This can be avoided by designing a structure with redundant
and failover capabilities, minimizing single points of failure.
 Unavailability of the ACCESS messaging system due to troubleshooting
problems brought about by an increase in complexity between the regional
site clients and the WSP head end.
 The unauthorized accessing, blocking or tampering with sensitive data due
a poorly configured access control mechanism.
 Unauthorized configuration changes can be made by an attacker exploiting
unsecured access to management interfaces.
 The uninvited accessing of the ACCESS messaging system could be the
result of a configuration error in the assignment of users to groups. Such
an error could be exploited by a would-be intruder.
IV. Safeguard Recommendations
All of the risks discussed previously are, to one degree or another, issues of policy and
procedure. When it comes to establishing sound policies and enforcing appropriate
procedures, those relating directly to the operation of the head end concentrator are the
responsibility of the WSP. However, while WSP can suggest procedures to be

7. implemented by the regional sites, it is up to those sites to implement those procedures in
keeping with their own security policies. Regional sites are responsible for setting and
maintaining their own policies and procedures. Anything other than broad
recommendations by WSP would be out of scope for this document.
This section is concerned with specifying possible safeguards, or countermeasures, and
how they relate to WSP’s decision to either mitigate the perceived risk or accept it.
Security safeguards are measured in terms of its cost, functionality and effectiveness.
Areas that need to be addressed include:
• Network Latency and Jitter - Communication between a regional site and the
head end, which pass over network segments affected by traffic congestion, will
result in unacceptable packet loss. This can adversely affect IPSec tunnels. The
WSP will need to monitor the Cisco 3030 logs to identify problem sites. When
problems exist, the WSP will need to work with the DIS, and the regional site to
determine what options are available to mitigate network congestion.
• Single Point of Failure – The risk of unanticipated downtime can be mitigated
by identifying potential single points of failure and applying redundant solutions.
This might mean, for example, adding a second encryption module to the
concentrator. Another option would be installation of a redundant 3030
concentrator. If the active concentrator were to fail, Cisco’s Virtual Router
Redundancy Protocol (VRRP) could enable a seamless failover to the standby
device. To make a decision as to which (if either) of the above two options makes
the most sense, WSP management would need to weigh the cost of each solution
against the likelihood and consequences of module or device failure and come to
a decision. High availability service contracts should also be considered.
It must be kept in mind that another weak link in the WSP network (a non-
redundant firewall for example) could mean that a redundant concentrator or
module solution would not adequately mitigate the risk.
• Lax Physical Security – The risk of someone stealing or damaging the head end
concentrator can be mitigated by establishing a secured area within the data
center that only the crypto-officer and perhaps a second trusted person would
have physical access to. Ideally, similar measures should be put in place at each
of the regional sites, but this is clearly the responsibility of each regional site and
is out of scope for WSP’s NCIC 2000 Encryption Project risk mitigation strategy.
The most serious consequence of the theft on such an encryption device is not the
cost of replacement, but the possibility that the intruder will gain access to the
private and secret keys held by the device.
• Insecure Password Changing Mechanism – As pointed out earlier, it’s
relatively easy for anyone possessing the administrative password and physical
access to the concentrator or hardware client console to change any other
password. This could invite the possibility of encryption system sabotage. As
with the previous recommendation, risk mitigation here takes the form of
creating a secured area within the presumably secured area of the data center.
Again, no more than two trusted persons would have access to the secured area
within a secured area.

8. • Password Non-recoverable In this situation, the Crypto Officer who forgets the
password serves as the threat agent. The only way the password can be recovered
is by returning the concentrator or the hardware client to Cisco. The encryption
system is inoperable until Cisco is able to solve the problem.
There is a series of steps that must be followed to mitigate this risk.
1. The Crypto Officer creates the password and only that person should ever
know it. It should be a word or phrase (FIPS requires a minimum
password length of 6 characters) that has some meaning to the Crypto
Officer but is obscure enough that it can withstand a brute force or
dictionary attack.
2. The Crypto Officer writes down the password only once and immediately
places the paper the password is written on in a secure off-site facility
such as a safety deposit box.
3. The administration of the off-site facility is instructed that only the Crypto
Officer is to have access to the stored document. The only exception is
that if the Crypto Officer is incapacitated, the person designated as back-
up Crypto Officer will have access to the paper the password is written on.
• Network Complexity – The threat of difficulty troubleshooting and the
consequent risk of an unavailable messaging system can be mitigated through the
development of new troubleshooting techniques which expand upon existing
troubleshooting techniques as well as additional training of personnel.
• Lax Access Control Mechanism – The threat of an unauthorized person
accessing the private interface of either the 3030 concentrator at the head end or
the 3002 client at a regional site could result in the compromise of sensitive data.
Risk mitigation, in such an instance, would call for securing traffic between the
private interface and its termination interface (i.e. firewall). In the case of the
3030 concentrator, this is the responsibility of WSP. In the case of the 3002
client, this is the responsibility of the regional site.
• Inadequate Crypto Officer Backup Mechanism – The threat agent is an
unqualified person cast in the role of Crypto Officer. This can result in a
compromise of the encryption system. This risk can be mitigated by the creation
of thoroughly documented procedures defining the role and responsibilities of the
Crypto Officer.
• Failure to Enforce the Policy of Least Privilege – The threat agent in this
scenario is any person with privileges not required for the job. This could be
someone with elevated privileges left over from a previous position. It could be
someone no longer employed by the organization but still holding the privileges
of a previous position. Again the result could be the compromise of the sensitive
or the deliberate or accidental disruption of the messaging or encryption system.
These risks can be mitigated by rigorous enforcement of the principle of least
privilege. No one should be assigned privileges not required for the position.
Anyone ceasing to work for WSP or any regional organization should have all
privileges revoked immediately. Anyone granted new privileges should be
thoroughly familiar with the procedures related to those privileges.

9. • Assignment or Elevation of Privileges Without Adequate Training – Here the
threat agent is anyone unfamiliar with the procedures necessary to accomplish an
assigned set of tasks. This can result in unintentional errors that could put the
messaging or encryption system at risk. It can also leave the inexperienced
employee susceptible to manipulation by someone with questionable intentions.
This risk can be mitigated by an appropriate amount of training, not so much as
to overwhelm the employee but enough so that the employee can assume a new
role with a thorough understanding of the procedures necessary to do the job.
• Unsecured Access to Management Interface – The threat agent here is an
attack resulting in undesirable configuration changes. This risk can be addressed
by a meticulously designed and carefully implemented secure management
interface access scheme. When carefully executed, these procedures can
significantly reduce the chances of an intruder mounting a successful brute force
or other attack against the management interface of either the head end
concentrator or the regional site 3002 hardware client.
• Misconfiguring the Assignment of Users to Groups – Poor planning and
implementation can result in the assignment of users to inappropriate groups.
Again, the threat agent is the person (whether employee or intruder) who can
exploit this vulnerability by either mounting an attack or making an innocent
mistake that could place the encryption and messaging systems in jeopardy. In
this situation, risk mitigation calls for carefully constructed procedures designed
to minimize human error when assigning users to groups.
• Inadequate or No Log Auditing. In this environment, the threat agent is an
intruder who can mount a passive attack undetected. Passive attacks are done by
monitoring a system performing its tasks and collecting information. In general,
it is very hard to detect passive attacks since they do not interact or disturb
normal system functions. Examples of passive attacks are monitoring network
traffic, CPU and disk usage. Passive attacks often serve to precede a brute force
attack.
This risk can be mitigated through the maintenance of adequate logs and a system
of real time monitoring. This action will not be successful however unless the logs
are carefully audited and the monitoring is performed rigorously and at regular
intervals.
• Power Failure – The threat agent is the absence of a UPS. During a power
failure, the messaging and encryption systems could be rendered inoperable. This
risk can be mitigated by means of the installation and careful maintenance of a
UPS designed to provide uninterrupted power until a longer term solution can be
employed.
• Limited Scalability – The threat agent, is the need to grow beyond the 100 group
and user limit. The risk can be mitigated by through the use of an external
authentication server.
• FIPS Standards Limiting WSP and Regional Sites to Firmware Known to be
Vulnerable. The known vulnerabilities constitute the threat agent and the risk is
a device running firmware known to be vulnerable. Due to Criminal Justice

10. Information Service (CJIS) Security Policy requirements to adhere to FIPS
standards, it is necessary to accept this risk until a newer firmware release is
validated and then to proceed with a firmware upgrade after careful testing.
• Lack of Bandwidth – The risk, loss of data, brought about by an increase in
traffic, can be mitigated by the addition of more bandwidth capacity.
• No Backup Configuration File in the 3030 Concentrator- The risk, in this
case, excessive downtime caused by the concentrator’s inability to restore
damaged files, can be mitigated through the implementation of proper backup
and restore procedures.