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SLAC Vulnerability Scanning Cyber Security Working Group - LBL December 5, 2005 Teresa Downey - SLAC
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Tools Used ISS RealSecure SiteProtector Consoles 1 ISS RealSecure SiteProtector DB 5 ISS Internet Scanners 1 DNS Registration DB (CANDO) 2 Windows Automated Patching Methods (that mostly work) ~20 Desktop Admins (for when the automated patching doesn’t work)
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“Daily” Scans Lab is 24x7 – scans run 3x/day “Daily” policy runs 30-40 tests Most are recent “critical” Windows patches P2P and Remote Admin software tests “No SA password” test Finds the unexpected…
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Updates to “Daily” Policy All tests are listed in SLAC Security web page Deadlines (if set) are found on same page URLs to “disconnect” procedures as well DHCP/VPN/Dial-UP Users Deadline of ~10 days after patch release Mailing list used to reach all “remote” users Fixed IP Users Only set deadlines on vulns w/ active exploits Mailing list to reach all “windows” users
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Enforcement of “Daily” Scan Vulnerabilities found are dumped to CSV Imported into Oracle DB; merged with DNS Registration DB (CANDO); and exported to Excel file on network Tue/Thu = Desktop Admin e-mail If past deadline – fix it or IP is blocked from Internet at 6PM – blocked immediately if dhcp/vpn/dial-up user Fridays = System Admin “Nag” e-mail If vulnerable (w/o deadline) for > 2 weeks Mon/Wed/Sat – just e-mail Security – or notify SysAdmin if extremely critical patch missing “Daily” scan & enforcement is 30 to 60 mins/day
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“Quarterly” Scans Web Servers Standard ISS L4 Web Server Policy Could switch to monthly SANS TOP 20 Visitor Network Public Networks “Special” Networks (open, but critical apps) Private Networks (haven’t gotten to these yet…)
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Enforcement of “Quarterly” Scans Trouble Tickets Created in RT Most of the “highs” & a few of the “mediums” Work with System Admins to get resolved or… Move systems into Internet-Free-Zone Rescanning; Assisting Admins; Closing Tickets is a huge effort. Takes about 1 month of my time. Hoping this drops each quarter.
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ScanMe Application To keep the Desktop Admins from constantly contacting me to re-scan… One dedicated Internet Scanner with a Web front-end Windows Authentication Enter IP and Policy to use Verify caller is authorized PDF report is emailed to requester Big time-saver for me – Admins like it!
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