CVE-1999-1591

Summary

CVE-1999-1591: Microsoft IIS 4.0 SP4 Servers Unauthenticated Access Vulnerability Microsoft Internet Information Services (IIS) 4.0 SP4 servers, when not applying specific hotfixes, offer unauthenticated access due to a bypassed authentication requirement. This issue can be exploited remotely, enabling attackers to connect using Microsoft Visual InterDev 6.0 without providing valid credentials. The vulnerability poses a significant risk, making it essential for IIS 4.0 SP4 users to promptly install the relevant patches to secure their systems.

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