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Windows NT 4.0 Security Patch: Syskey Keystream Reuse Vulnerability (Alpha)
Brief Description
This patch eliminates a vulnerability in the Windows NT 4.0 Syskey utility. Syskey provides additional cryptographic protection to the passwords stored in the SAM database, but a flaw weakens the protection.
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Quick Details
| File Name: | Q248183.EXE |
| Version: | syskey |
| Security Bulletins: | MS99-057 |
| Date Published: | 12/16/1999 |
| Language: | English |
| Download Size: | 342 KB |
| Estimated Download Time: | 1 min 56K |
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Overview
This patch eliminates a vulnerability in the Windows NT 4.0 Syskey utility. Syskey provides additional cryptographic protection to the passwords stored in the SAM database, but a flaw weakens the protection. This patch restores the protection to its designed strength, and makes password cracking attacks infeasible. The patch also eliminates a denial of service vulnerability associated with the Windows NT LsaLookupSids() function, as discussed in http://www.microsoft.com/security/bulletins/ms99-057.asp.
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System Requirements
- Supported Operating Systems: Windows NT
Windows NT 4.0 Service Pack 6 Top of page
Instructions
- Select "Run this Program from its Current Location" to start the install immediately.
- Select "Save this Program to Disk" to copy the download to your machine for installation at a later time.
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