Title: NT IIS Malformed HTTP Request Header DoS Vulnerability
Severity: MODERATE
Description:
Microsoft IIS and all other products that use the IIS web engine have a vulnerability whereby a flood of specially formed HTTP request headers will make IIS consume all available memory on the server and then hang. IIS activity will be halted until the flood ceases or the service is stopped and restarted.
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 2.0.0
- Microsoft Commercial Internet System 2.5.0
- Microsoft IIS 4.0.0
- Microsoft Site Server Commerce Edition 3.0.0 alpha
- Microsoft Site Server Commerce Edition 3.0.0 i386
- Microsoft Windows NT 4.0 Option Pack
References:
- Microsoft: Frequently Asked Questions: Microsoft Security Bulletin (MS99-029)
- Microsoft: Q238349: Specially-Malformed Header in GET Request Creates Denial of Service
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