Title: Microsoft IIS 4.0 Domain Resolution Vulnerability
Severity: MODERATE
Description:
IIS 4.0 and CIS 2.5 allow an administrator the option to restrict access by specifying a domain or an IP address If a domain is restricted, but a machine in that domain that cannot be resolved makes an HTTP request, the IIS server will respond as usual. Any subsequent requests will be denied.
Restricted hosts with an IP address that can be resolved to a domain name will be denied access from the first request.
Affected Products:
- Cisco Building Broadband Service Manager 5.0.0
- Cisco Call Manager 1.0.0
- Cisco Call Manager 2.0.0
- Cisco Call Manager 3.0.0
- Cisco ICS 7750 0.0.0
- Cisco IP/VC 3540 Video Rate Matching Module 0.0.0
- Cisco Unity Server 2.0.0
- Cisco Unity Server 2.2.0
- Cisco Unity Server 2.3.0
- Cisco Unity Server 2.4.0
- Cisco uOne 1.0.0
- Cisco uOne 2.0.0
- Cisco uOne 3.0.0
- Cisco uOne 4.0.0
- Microsoft BackOffice 4.0.0
- Microsoft BackOffice 4.5.0
- Microsoft Commercial Internet System 2.5.0
- Microsoft IIS 4.0.0
- Microsoft Windows NT 4.0 Option Pack
References:
- Microsoft: Microsoft Security Bulletin (MS99-039): Frequently Asked Questions
- Microsoft: Q241562: Denying Access With Domain Name Restriction Still Allows Unresolved Cli
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