Workarounds Issued For 'Apache Killer' Attack

Friday Aug 26th 2011 by Datamation.com Staff
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An unpatched security flaw in the popular Web server software could enable crippling DDoS attacks.

Dark Reading: The Apache Foundation has issued an alert about a security flaw in its extremely popular Web server software that could enable crippling DDoS attacks launched from a single PC. "By sending specially crafted HTTP requests which include malformed range HTTP header, an attacker can disrupt the normal function of the web server, thus disallowing legitimate users to receive responses from the web server," reads the advisory. "This issue affects all Apache software versions and a patch has not been released yet."

Apache expects to release a patch for the problem within the week. Until then, they offered several workarounds, including limiting the size of the HTTP request field to "a few hundred bytes."

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