DOCUMENT:Q296185 15-AUG-2002 [iis] TITLE :Patch Available for New Variant of "Malformed Hit-Highlighting" PRODUCT :Internet Information Server PROD/VER::2.0 OPER/SYS: KEYWORDS:kbSecurity kbWinNT400PreSP7Fix kbWin2000PreSP3Fix kbgraphxlinkcritical KbSECVulnerabili ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Index Server version 2.0 - Indexing Service ------------------------------------------------------------------------------- SYMPTOMS ======== A new variant of the Malformed Hit-Highlighting vulnerability (http://www.microsoft.com/technet/security/bulletin/MS00-006.asp) has been discovered that affects both Index Server 2.0 and Indexing Service in Microsoft Windows 2000. The new variant has exactly the same scope as the original vulnerability. If an attacker provides an invalid search request, he or she can read files that reside on the Web server. The new patch eliminates all known variants of the vulnerability. Mitigating Factors: - The vulnerability would only allow files to be read. File cannot be added, changed, or deleted through this vulnerability. - Server-side files should not contain sensitive data. If you follow this recommendation, there would be no sensitive data to compromise through this vulnerability. - The vulnerability would only allow files that reside on the Web server (and in the same logical drive as the server's root directory) to be read. It would not allow files elsewhere on the server, or files that reside on a remote server, to be read. RESOLUTION ========== Indexing Service ---------------- This problem was first corrected in Windows 2000 Service Pack 3. The English version of this fix should have the following file attributes or later: Date Time Version Size File name ------------------------------------------------------ 04/12/2001 03:40p 5.0.2195.3498 42,768 Webhits.dll Index Server 2.0 ---------------- Windows NT 4.0: To resolve this problem, obtain the individual package referenced below or obtain the Windows NT 4.0 Security Rollup Package. For additional information on the SRP, click the article number below to view the article in the Microsoft Knowledge Base: Q299444 Post-Windows NT 4.0 Service Pack 6a Security Rollup Package (SRP) The following file is available for download from the Microsoft Download Center: DownloadDownload Q296185i.exe now (http://www.microsoft.com/ntserver/nts/downloads/critical/q296185/default.asp) For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base: Q119591 How to Obtain Microsoft Support Files from Online Services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on secure servers that prevent any unauthorized changes to the file. The English version of this fix should have the following file attributes or later: Date Time Version Size File name --------------------------------------------------- 04/12/2001 03:51p 5.0.1781.3 42,256 Webhits.dll NOTE: Due to file dependencies, this hotfix requires Microsoft Windows NT 4.0 Service Pack 3 or later. Windows NT Server version 4.0, Terminal Server Edition: To resolve this problem, obtain the Windows NT Server 4.0, Terminal Server Edition, Security Rollup Package (SRP). For additional information about the SRP, click the article number below to view the article in the Microsoft Knowledge Base: Q317636 Windows NT Server 4.0, Terminal Server Edition, Security Rollup Package STATUS ====== Microsoft has confirmed that this problem may cause a degree of security vulnerability in Indexing Service in Windows 2000 and Index Server 2.0. This problem was first corrected in Windows 2000 Service Pack 3. MORE INFORMATION ================ For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base: Q265173 The Datacenter Program and Windows 2000 Datacenter Server Product For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base: Q296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot For more information about this vulnerability, see the following Microsoft Web site: http://www.microsoft.com/technet/security/bulletin/MS01-025.asp Additional query words: security_patch kbWin2000srp1 ====================================================================== Keywords : kbSecurity kbWinNT400PreSP7Fix kbWin2000PreSP3Fix kbgraphxlinkcritical KbSECVulnerability KbSECHack kbWin2000sp3fix Technology : kbIdxServSearch kbAudDeveloper kbIdxServ100 kbIdxServ200 Version : :2.0 Hardware : x86 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.