CVE-1999-1233
Internet Information Server 4.0 - Unauthenticated Access Restriction Bypass via DNS Resolution
Title source: llmDescription
IIS 4.0 does not properly restrict access for the initial session request from a user's IP address if the address does not resolve to a DNS domain, aka the "Domain Resolution" vulnerability.
References (4)
Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/3306
Patch, Vendor Advisory vendor-advisory
x_refsource_mskb
http://support.microsoft.com/support/kb/articles/Q241/5/62.asp
Exploit, Patch, Vendor Advisory vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/657
Vendor Advisory vendor-advisory
x_refsource_ms
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-039
Scores
EPSS
0.0545
EPSS Percentile
92.0%
Details
Status
published
Products (1)
microsoft/internet_information_server
4.0
Published
Dec 31, 1999
Tracked Since
Feb 18, 2026