{"id":2192,"date":"2009-11-18T22:26:00","date_gmt":"2009-11-18T21:26:00","guid":{"rendered":"https:\/\/www.boc.de\/watchguard-info-portal\/downloads-von-der-microsoft-website-brechen-ab\/"},"modified":"2016-08-23T15:12:14","modified_gmt":"2016-08-23T13:12:14","slug":"downloads-von-der-microsoft-website-brechen-ab","status":"publish","type":"post","link":"https:\/\/wordpress.boc.de\/watchguard-info-portal\/2009\/11\/downloads-von-der-microsoft-website-brechen-ab\/","title":{"rendered":"Downloads von der Microsoft Website brechen ab"},"content":{"rendered":"<p>In einem aktuellen Supportfall berichtete ein Kunde mit einer X550e und Fireware XTM 11.0.2, dass regelm\u00e4\u00dfig gro\u00dfe <strong>Downloads von der Microsoft Website abbrechen<\/strong> w\u00fcrden. Dies aber nur, wenn eine <strong>HTTP-Proxy Regel<\/strong> verwendet w\u00fcrde. Mit einer HTTP-Filter Regel w\u00fcrde der Download erfolgreich abschlie\u00dfen.<\/p>\n<p>Die genauere Untersuchung in diesem Fall zeigte auf, dass im Rahmen der UTM Services auch <strong>Intrusion Prevention<\/strong> aktiviert war. Ich konnte im Traffic Monitor mitverfolgen, dass in den Downloads die Endeavor IPS Signatur <strong>ED-49005<\/strong> (FILE.CUE.VideoLANVLC.Buffer.Overflow) erkannt worden ist. Ob die Downloads nun tats\u00e4chlich dieser Anf\u00e4lligkeit unterliegen oder ob es sich um ein so genanntes &#8222;False Positive&#8220; handelt, habe ich nicht weiter untersucht. In Abstimmung mit dem Kunden habe ich zun\u00e4chst <strong>*.microsoft.com<\/strong> im HTTP-Proxy als <strong>HTTP Proxy Exception<\/strong> eingetragen.<\/p>\n<div class=\"shariff\"><ul class=\"shariff-buttons theme-default orientation-horizontal buttonsize-medium\"><li class=\"shariff-button mailto shariff-nocustomcolor\" style=\"background-color:#b32317\"><a href=\"mailto:?body=https%3A%2F%2Fwordpress.boc.de%2Fwatchguard-info-portal%2F2009%2F11%2Fdownloads-von-der-microsoft-website-brechen-ab%2F&subject=Downloads%20von%20der%20Microsoft%20Website%20brechen%20ab\" title=\"Per E-Mail versenden\" aria-label=\"Per E-Mail versenden\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; color:#fff\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 32 32\"><path fill=\"#999\" d=\"M32 12.7v14.2q0 1.2-0.8 2t-2 0.9h-26.3q-1.2 0-2-0.9t-0.8-2v-14.2q0.8 0.9 1.8 1.6 6.5 4.4 8.9 6.1 1 0.8 1.6 1.2t1.7 0.9 2 0.4h0.1q0.9 0 2-0.4t1.7-0.9 1.6-1.2q3-2.2 8.9-6.1 1-0.7 1.8-1.6zM32 7.4q0 1.4-0.9 2.7t-2.2 2.2q-6.7 4.7-8.4 5.8-0.2 0.1-0.7 0.5t-1 0.7-0.9 0.6-1.1 0.5-0.9 0.2h-0.1q-0.4 0-0.9-0.2t-1.1-0.5-0.9-0.6-1-0.7-0.7-0.5q-1.6-1.1-4.7-3.2t-3.6-2.6q-1.1-0.7-2.1-2t-1-2.5q0-1.4 0.7-2.3t2.1-0.9h26.3q1.2 0 2 0.8t0.9 2z\"\/><\/svg><\/span><span class=\"shariff-text\">E-Mail<\/span>&nbsp;<\/a><\/li><li class=\"shariff-button linkedin shariff-nocustomcolor\" style=\"background-color:#b32317\"><a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https%3A%2F%2Fwordpress.boc.de%2Fwatchguard-info-portal%2F2009%2F11%2Fdownloads-von-der-microsoft-website-brechen-ab%2F\" title=\"Bei LinkedIn teilen\" aria-label=\"Bei LinkedIn teilen\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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Dies aber nur, wenn eine HTTP-Proxy Regel verwendet w\u00fcrde. Mit einer HTTP-Filter Regel w\u00fcrde der Download erfolgreich abschlie\u00dfen. Die genauere Untersuchung in diesem Fall zeigte auf, dass im Rahmen der UTM Services auch Intrusion Prevention aktiviert war. Ich konnte im Traffic &hellip; <a href=\"https:\/\/wordpress.boc.de\/watchguard-info-portal\/2009\/11\/downloads-von-der-microsoft-website-brechen-ab\/\" class=\"more-link\">Weiterlesen <span class=\"screen-reader-text\">Downloads von der Microsoft Website brechen ab<\/span> <span class=\"meta-nav\">&raquo;<\/span><\/a><\/p>\n<div class=\"shariff\"><ul class=\"shariff-buttons theme-default orientation-horizontal buttonsize-medium\"><li class=\"shariff-button mailto shariff-nocustomcolor\" style=\"background-color:#b32317\"><a href=\"mailto:?body=https%3A%2F%2Fwordpress.boc.de%2Fwatchguard-info-portal%2F2009%2F11%2Fdownloads-von-der-microsoft-website-brechen-ab%2F&subject=Downloads%20von%20der%20Microsoft%20Website%20brechen%20ab\" title=\"Per E-Mail versenden\" aria-label=\"Per E-Mail versenden\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; color:#fff\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 32 32\"><path fill=\"#999\" d=\"M32 12.7v14.2q0 1.2-0.8 2t-2 0.9h-26.3q-1.2 0-2-0.9t-0.8-2v-14.2q0.8 0.9 1.8 1.6 6.5 4.4 8.9 6.1 1 0.8 1.6 1.2t1.7 0.9 2 0.4h0.1q0.9 0 2-0.4t1.7-0.9 1.6-1.2q3-2.2 8.9-6.1 1-0.7 1.8-1.6zM32 7.4q0 1.4-0.9 2.7t-2.2 2.2q-6.7 4.7-8.4 5.8-0.2 0.1-0.7 0.5t-1 0.7-0.9 0.6-1.1 0.5-0.9 0.2h-0.1q-0.4 0-0.9-0.2t-1.1-0.5-0.9-0.6-1-0.7-0.7-0.5q-1.6-1.1-4.7-3.2t-3.6-2.6q-1.1-0.7-2.1-2t-1-2.5q0-1.4 0.7-2.3t2.1-0.9h26.3q1.2 0 2 0.8t0.9 2z\"\/><\/svg><\/span><span class=\"shariff-text\">E-Mail<\/span>&nbsp;<\/a><\/li><li class=\"shariff-button linkedin shariff-nocustomcolor\" style=\"background-color:#b32317\"><a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https%3A%2F%2Fwordpress.boc.de%2Fwatchguard-info-portal%2F2009%2F11%2Fdownloads-von-der-microsoft-website-brechen-ab%2F\" title=\"Bei LinkedIn teilen\" aria-label=\"Bei LinkedIn teilen\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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