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Remote Access Tools Policy

Remote Access Tools Policy. John Jarocki May 2010 GIAC GSEC, GCIA, GCIH, GCFW, GPEN. Objective. Define Remote Access Tools List benefits Describe risks Explain why a policy is needed Provide policy guidance. What are remote access tools?.

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Remote Access Tools Policy

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  1. Remote Access Tools Policy John Jarocki May 2010 GIAC GSEC, GCIA, GCIH, GCFW, GPEN SANS Technology Institute - Candidate for Master of Science Degree

  2. Objective • Define Remote Access Tools • List benefits • Describe risks • Explain why a policy is needed • Provide policy guidance SANS Technology Institute - Candidate for Master of Science Degree

  3. What are remote access tools? • Remote Access is “the ability to access your computer from a remote location,” and “the ability to control the machine once the connection is made.” • Source: TechTerms.com • Examples: • VNC (Virtual Network Computing) • Windows Remote Desktop • GoToMyPC • LogMeIn • WebEx SANS Technology Institute - Candidate for Master of Science Degree

  4. Remote access value Benefits: • Money saved on commuting • Remote access to jobs in progress • Real-time team collaboration • 24x7 Tech support SANS Technology Institute - Candidate for Master of Science Degree

  5. Remote access risks Risks: • Unauthorized access • Malware • Data theft • Compliance • Transitive trust SANS Technology Institute - Candidate for Master of Science Degree

  6. More subtle risks • Several remote access tools have known vulnerabilities or even just “features” users are not aware of • Securing them properly requires careful control of versions and configuration • Let’s look at VNC in more detail... SANS Technology Institute - Candidate for Master of Science Degree

  7. VNCVirtual Network Computing • Originally created at Olivetti Research Labs • Security concerns: • Older and free versions do not encrypt data • Weak password hash and challenge-response • Various vulnerabilities exist • Recommendations: • Use Enterprise version, ssvnc, or wrappers SANS Technology Institute - Candidate for Master of Science Degree

  8. Why do we need a remote access tools policy? • The benefits are obvious, but the policy should clarify the risks • Users are bombarded with ads for the “latest, greatest” tools • Guidelines can educate and empower SANS Technology Institute - Candidate for Master of Science Degree

  9. Policy recommendations • The policy should provide a set of requirements for acceptable remote access tools • Multi-factor authentication • Replay attack defense • Strong encryption • Configuration and reporting SANS Technology Institute - Candidate for Master of Science Degree

  10. Summary • Remote access tools have many benefits • But poorly implemented, they add risk • The policy should: • Define acceptable use • Discuss the cost / benefit equation • Provide guidance and clarification SANS Technology Institute - Candidate for Master of Science Degree

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