危険度: 中
  CVE識別番号: CVE-2008-5180
  情報公開日: 2 25, 2011

  概要

Microsoft Office Communicator is prone to a remote denial-of-service vulnerability that arises during SIP protocol handling. Exploiting this issue allows remote attackers to cause denial-of-service conditions. This issue affects Microsoft Office Communicator 2010 beta; other versions may also be affected. Microsoft Communicator, and Communicator in Microsoft Office 2010 beta, allows remote attackers to cause a denial of service (memory consumption) via a large number of SIP INVITE requests, which trigger the creation of many sessions.

  トレンドマイクロの対策

Trend Micro Deep Security shields networks through Deep Packet Inspection (DPI) rules. Trend Micro customers using OfficeScan with Intrusion Defense Firewall (IDF) plugin are also protected from attacks using these vulnerabilities. Please refer to the filter number and filter name when applying appropriate DPI and/or IDF rules.

  対応方法

  Trend Micro Deep Security DPI Rule Number: 1003089
  Trend Micro Deep Security DPI Rule Name: 1003089 - Microsoft Communicator SIP INVITE Request Handling Denial Of Service

  影響を受けるソフトウェア

  • Microsoft Office Communicator