|Detecting Unauthorized Modem Connections at USAID Missions|
|January 23, 2001|
|CIO Council Security Practices Subcommittee (SPS)|
|United States Agency for International Development (USAID), Bureau for Management, Information Resources Management (M/IRM), Information Systems Security Team|
|1.7||Level of BSP|
|1.8||Security Processes or other Framework(s) Supported|
|In the Security Process Framework:
In the SSE CMM Framework:
In the OMB A-130, Appendix III,
|Not to be completed by the drafter|
|1.10||Points of Contact|
|Government BSP Owner:
|2.0||What This BSP Does|
|This BSP discusses how to detect unauthorized modem connections to an official network as part of the cyber-security assistance visits at USAID missions worldwide. The process involves the use of the 'PhoneSweep' software. The scans can be conducted at various levels of specificity, for instance, detect only, detect and identify protocols, detect and attempt to crack passwords. These levels are discussed with management prior to conducting the scans.|
|2.2||Requirements for this BSP|
|OMB A-130 Appendix III, Section A.3.a.3 states:
"Review of Security Controls. Review the security controls in each system when significant modifications are made to the system, but at least every three years. The scope and frequency of the review should be commensurate with the acceptable level of risk for the system. Depending on the potential risk and magnitude of harm that could occur, consider identifying a deficiency pursuant to OMB Circular No. A-123, "Management Accountability and Control" and the Federal Managers' Financial Integrity Act (FMFIA), if there is no assignment of security responsibility, no security plan, or no authorization to process for a system."
|Modem scanning was an integral part of the
cyber-security assistance visit provided to the mission in Lima, Peru in 1999 and Phnom
Penh, Cambodia and Manila, Philippines during November and December 2000. The
correspondence below is from a senior manager at Lima expressing the mission's
appreciation for raising their information system security posture through the
cyber-security assistance visit process.
Subj: COMPUTER SECURITY TEAM VISIT
Source: David Bayer, USAID Peru Executive Office
If you have the opportunity to have the Information Systems Security Officer (ISSO) Jim Craft and his Risk Assessment Program Area Manager, Rodney Murphy, visit your Mission with their team of computer security experts, then take advantage of it. They did one hell of a job during their February visit with us at USAID/Peru in getting us up to speed and raising our level of consciousness about security issues. This is not to say that our dedicated IRM staff, led by Systems Manager, Lucho Figueroa, have not been working their hearts out to get us into shape, but it is a real injection of energy to have professional people like Jim, Rodney, John Zoble, Mike Reiter and Steve Bui come in and sit down to review your Computer Security Program and Computer Contingency Plan with you.
In addition, they trained some 80 employees to become aware of computer security pitfalls.
And, last but not least, they have given us some key advice and methods for closing out some computer security audit issues which are not only USAID/Peru exposures but endemic to all Missions worldwide.
Computer security is becoming an important issue in for USAID and all organizations. In this environment, new security standards and having a formal security program in each overseas Mission is very important.
USAID/Peru was selected as a Beta site to define the model/templates for the Computer Security Program to be applied in all overseas Missions.
Starting February 19 to February 25, during five workdays, a Computer Security Team belonging to the IRM/ Security Group was in Lima. The team had five members. Jim Craft acted as the team Leader.
Computer Security is a dynamic activity and demands coordination and permanent follow-up. The Computer Security Team's role in the implementation of the Computer Security Program in each Mission is critical. Computer Security activity involves the entire USAID organization, starting from Washington and reaching out worldwide to all Missions. If one Mission security system fails, it endangers the entire USAID organization.
|3.0||What This BSP Is|
|3.1||Description of BSP|
Step 1. Coordinate, with the appropriate personnel, approval to conduct the modem scan. The Modem Scan activity should be completed after-hours to eliminate disturbances to working staff and also to look for unauthorized modems operating after normal working hours.
Step 2. Connect the hardware and configure the software.
Step 3. Run the Scan, produce the Scan results Report, and Analyze the report data
|3.2||Relationship to Other BSPs|
|The cyber-security assistance visit process comprises several subprocesses, one of which is the Modem Scan. Additional relationships will be added as additional BSPs are submitted|
|4.0||How To Use This BSP|
|4.2||Implementation Resource Estimates|
|Personnel: Operating System Administrator
or trained security professional.
Time per System/Scan:
Preparation Time up-front: 2 - 4 hours identifying the current system environment and obtaining proper approvals.
On-Site Time: 4 - 6 hours to connect hardware, configure software, and tear down when finished. 12 hours to run After-hours Scan. (This is dependent upon the number of phone numbers being scanned.)
Final Report Preparation Time: 4 hours; this includes the review of data and documentation of activities by the reviewer, and also the transfer of the documentation by the report writer into the final report.
|4.3||Performance Goals and Indicators (Metrics)|
|General Goal: To eliminate those security
vulnerabilities associated with unauthorized access to system resources caused by the
existence/use of non-approved and unauthorized modems connected to the network.
Performance Goal: To perform the modem scan on an organization's networks, often and routinely, in order to ensure detection of unauthorized modems connected to the network.
Outcome Goal: To search for the existence of modems connected to the network and identify their specific location.
Output goal: To document the identification and location of modems connected to the network.
General Objective: To identify the risk involved with the security vulnerability associated with the presence of unauthorized modems connected to the network. The organization's Senior Management can then use this information to make proper information systems security decisions.
Performance Indicator: Assess the effectiveness of the modem scan by routine analysis of the process. By keeping detailed records on the number of scans run, the frequency and time of day of the scans, and scan results, an assessment can be made to determine whether or not the process is keeping unauthorized modems off the network. Modify the process, if necessary.
|The tools used to perform the Risk Assessment
After-hours Modem Scan are:
|PhoneSweep v1.03 User's Manual, Sandstorm Enterprises, 1999|
|A||Executive Overview and Briefing|
|Editor's Note: See App A *.ppt briefing|
|The United States Agency for International Development (USAID) has contracted for general IRM support with Computer Sciences Corporation (CSC) under the Agency's Principle Resource for Information Management Enterprisewide (PRIME) contract (GS00K96AJD0012) with FEDSIM. USAID obtains its information system security support from CSC under the PRIME contract using the Performance Work Statement (PWS) at Appendix C *.doc.|
|Not yet evaluated|
|Version 1.0 of the BSP was reviewed after conducting cyber-assistance visits to Phnom Penh, Cambodia and Manila, Philippines during November and December 2000. The review has determined the original BSP remains valid and has incorporated minor editorial revisions.|