CVE-1999-1591

High

Description

Microsoft Internet Information Services (IIS) server 4.0 SP4, without certain hotfixes released for SP4, does not require authentication credentials under certain conditions, which allows remote attackers to bypass authentication requirements, as demonstrated by connecting via Microsoft Visual InterDev 6.0.

SeverityHigh
CVSS7.5
Exploit probability—
ProductMicrosoft Internet Information Server
PublishedDec 31, 1999
First seenDec 31, 1999

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
microsoft internet_information_server4.0—
microsoft visual_interdev6.0—

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