Chapter 4. Server Misconfiguration and Predictable Pages

Information in this Chapter

  • Understanding the Attacks
  • Employing Countermeasures

In July 2001, a computer worm named Code Red squirmed through Web servers running Microsoft IIS (www.cert.org/advisories/CA-2001-19.html). It was followed a few months later by another worm called Nimda (www.cert.org/advisories/CA-2001-26.html). The advent of two high-risk vulnerabilities so close to each other caused many sleepless nights for system administrators and ensured profitable consulting engagements for the security industry. Yet the spread of Nimda could have been prevented if system administrators had followed certain basic configuration principles for IIS, namely placing the Web document root ...

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