Microsoft KB Archive/299444

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Article ID: 299444

Article Last Modified on 4/23/2007


  • Microsoft Windows NT 4.0 Service Pack 6a
  • Microsoft Windows NT 4.0 Service Pack 6a
  • Microsoft Windows NT Workstation 4.0 Developer Edition

This article was previously published under Q299444

We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 on a Microsoft Windows Server 2003-based computer. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:


Microsoft has released a Security Rollup Package (SRP) for Windows NT 4.0 that includes the functionality from all security patches released for Windows NT 4.0 since the release of Windows NT 4.0 Service Pack 6a (SP6a). This small, comprehensive rollup of post-SP6a fixes provides an easier mechanism for managing the rollout of security fixes. Applying the SRP does not change the encryption level of your computer.

Compaq Array Controller Users

If you have installed the Compaq Array Controller Driver (Cpqarray.sys) from the Compaq Web Site, Compaq FTP Site, or Compaq SmartStart, please see the following article in the Microsoft Knowledge Base regarding Compaq Array controllers and the Windows NT 4.0 SRP:

305228 "STOP 0xA" occurs after applying Windows NT 4.0 Security Rollup Package

Digital Signature Issue

If you are running Internet Explorer 5.5 Service Pack 2 (SP2) or Internet Explorer 5.01 Service Pack 2 (SP2) and you access any secure website (https://) that uses Secure Sockets Layer (SSL), see the following article in the Microsoft Knowledge Base:

305929 "This certificate has an invalid digital signature" error message after you install the Windows NT 4.0 Security Rollup Package

Microsoft IntelliPoint Users

If you use a version of Microsoft IntelliPoint earlier than 2.2, see the following article in the Microsoft Knowledge Base before you install the SRP:

305462 Mouse and keyboard stop working after you install the Windows NT 4.0 Security Rollup Package

HP NTLock Users

If you use HP NTLock, see the following article in the Microsoft Knowledge Base:

311860 The Hewlett-Packard NTLock services do not start after you install the Windows NT 4.0 Security Rollup Package

If you add optional services, you must reapply the Windows NT 4.0 service pack and then the SRP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

196269 When to reinstall a service pack

If you need to add optional services, follow these steps:

  1. Install all optional services and companion services. You will be prompted for the original Window NT 4.0 media.
  2. After the files are installed from the original media, but before you restart your computer, reinstall Windows NT 4.0 SP6a. You must reinstall SP6a before you reinstall the SRP because the SRP requires SP6a.
  3. Restart your computer.
  4. Reinstall the SRP.
  5. Restart your computer.
  6. Install other post-SP6a hotfixes as necessary. For more information about the SRP, visit the following Microsoft Website:
  7. Restart your computer.

For additional information about how to install multiple hotfixes with only one reboot, click the following article number to view the article in the Microsoft Knowledge Base:

296861 How to install multiple Windows updates or hotfixes with only one reboot


Patches are available from the following Microsoft Web site (if your language is not listed, please check back):

Note: This patch requires Windows NT 4.0 SP6a. For additional information, visit the following MIcrosoft Web site:

Release Date: July 26, 2001

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 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 security-enhanced servers that help to prevent any unauthorized changes to the file. Note: When you apply the Post-Windows NT 4.0 SP6a SRP (which includes the security patch mentioned in bulletin MS01-026), be aware that the Post-Windows NT 4.0 SP6a SRP may introduce new problems. To fix these new problems, install the additional patches that are described in the following articles in the Microsoft Knowledge Base:

299273 UPN logon option does not work after you apply fix from MS01-026 security bulletin

269430 Incorrect error message double-clicking lock icon in SSL-secured connection

Fixes Included in the SRP

The SRP includes all post-SP6a fixes that have been delivered via Microsoft Security Bulletins. In addition, it also includes a small number of fixes that have not been previously discussed. Because security bulletins are disruptive to customers' normal maintenance procedures, Microsoft typically issues them only when a security issue poses an immediate danger to your systems. Issues that do not meet this standard are typically addressed through other delivery vehicles such as service packs or, in this case, the SRP.

241041 Enabling NetBT to open IP ports exclusively

243649 MS99-047: Unchecked print spooler buffer may expose system vulnerability

243835 MS99-046: How to prevent predictable TCP/IP initial sequence numbers

244599 Fixes required in TCSEC C2 security evaluation configuration for Windows NT 4.0 Service Pack 6a

246045 MS99-055: Malformed resource enumeration arguments may cause named pipes and other system services to fail

247869 MS00-003: Local procedure call may permit unauthorized account usage

248183 Syskey tool reuses keystream

248185 Security Identifier enumeration function in LSA may not handle argument properly

248399 MS00-007: Shared workstation setup may permit access to Recycle Bin files

249108 Registry data is viewable by all users during Rdisk repair update

249197 Internet Explorer does not allow use of single SGC certificate with 128-Bit encryption for virtual sites

249863 SGC connections may fail from domestic clients

249973 MS00-005: Default RTF file viewer interrupts normal program processing

250625 MS00-024: Default registry key permissions may allow privilege elevation

252463 MS00-006: Index server error message reveals physical location of Web folders

257870 Malformed print request may stop Windows 2000 TCP/IP Printing service

259042 Handle Leak in WinLogon after applying Windows NT 4.0 Service Pack 6

259496 MS00-008: Incorrect registry setting may allow cryptography key compromise

259622 MS00-027: Command processor may not parse excessive arguments properly

259728 MS00-029: Windows hangs with fragmented IP datagrams

259773 MS00-003: Incorrect response to local procedure call causes "Stop" error message

262388 Denial-of-service attack possible from Linux RPC client

262694 MS00-036: Malicious user can shut down computer browser service

264684 MS00-040: Patch for "Remote Registry Access Authentication" vulnerability

265714 MS00-095: Windows NT 4.0 SNMP registry entries are readable

266433 MS00-070: Patch for numerous vulnerabilities in the LPC port system calls

267858 "Memory could not be read" error message while doing file operation

267861 MS00-095: RAS registry modification allowed without administrative rights

267864 MS00-095: MTS Package Administration Key includes information about users

268082 DNS SOA record may reveal Administrator account name

269049 MS00-052: Registry-invoked programs use standard search path

269239 MS00-047: NetBIOS vulnerability may cause duplicate name on the network conflicts

271216 Fix for e-mail issues between 128-bit and 56-bit encryption using French regional settings

274835 MS00-083: Buffer overflow in Network Monitor may cause vulnerability

275567 MS00-091: Multiple NetBT sessions may hang local host

276575 MS00-094: Patch available for "Phone Book service buffer overflow" vulnerability

279336 MS01-003: Patch available for Winsock mutex vulnerability

279843 Some system named pipes are not created with appropriate permissions

280119 MS01-008: A patch is available for the NTLMSSP privilege elevation vulnerability

283001 MS01-009: Patch available for malformed PPTP packet stream vulnerability

293818 MS01-017: Erroneous VeriSign-issued digital certificates pose spoofing hazard

294472 MS99-057: Index Server search function contains unchecked buffer

296185 MS01-025: Patch available for new variant of the "Malformed Hit-Highlighting" vulnerability

298012 MS01-041: Malformed RPC request can cause service problems

300972 MS01-033: Unchecked buffer in Index Server ISAPI extension can enable Web server compromise

303628 Relative path issue can allow program to be run under the System context

IIS Fixes Included in the SRP

188348 Specially-malformed FTP requests may create Denial of Service

233335 Page contents visible when certain characters are at end of URL

234905 Improperly formatted HTTP request may cause INETINFO process to fail

238349 Specially-malformed header in GET request creates Denial of Service

238606 Page contents visible when certain dot extensions present in the virtual directory name

241805 Combined FTP and domain restriction security patch for IIS 4.0

244613 IIS 4.0 SSL ISAPI filter can leak single buffer of plaintext

246401 MS99-061: IIS may improperly parse specific escape characters

249599 Virtual directory mapped to UNC returns server-side script code when URL contains additional characters at the end of the request

252693 Chunked encoding request with no data causes IIS memory leak

254142 MS00-023: 100% CPU usage occurs when you send a large escape sequence

260205 MS00-030: HTTP request with a large number of dots or dot-slashes causes high CPU utilization

260347 MS00-060: IIS 4: fix for Cross-Site Scripting issues

260838 MS00-031: IIS stops servicing HTR requests

267559 MS00-044: GET on HTR file cancCause a "Denial of Service" or enable directory browsing

269862 MS00-057: Patch released for canonicalization error issue

271652 MS00-063: Patch released for malformed URL vulnerability that disables Web server response

274149 Cookies are not marked as SSL-secured in IIS

277873 MS00-086: Patch Available for "Web Server File Request Parsing" vulnerability

280322 FP2000: MS00-100: Patch for malformed Web form submission security vulnerability

285985 MS01-004: Patch available for new variant of File Fragment Reading via .HTR vulnerability

295534 Superfluous decoding operation can allow command execution through IIS

The fixes listed in the May 14, 2001 section of the following article in the Microsoft Knowledge Base are included in the Post-Windows NT 4.0 SP6a SRP:

297860 MS01-044: IIS 5.0 Security and post-Windows NT 4.0 SP5 IIS 4.0 patch rollup

Additional query words: security_patch kbdotcom

Keywords: kbinfo kbfix kbqfe KB299444