Signature Detail
Short Name |
HTTP:IIS:HEADER-HOST-DOS |
|---|---|
Severity |
High |
Recommended |
No |
Recommended Action |
Drop |
Category |
HTTP |
Keywords |
IIS Host Header DoS |
Release Date |
2003/04/22 |
Update Number |
1213 |
Supported Platforms |
di-5.3+, idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
HTTP: IIS Host Header DoS
This signature detects attempts to exploit a known vulnerability against Microsoft IIS. Attackers can pass maliciously malformed header values to the host to crash the IIS service.
Extended Description
Microsoft IIS is reported to be prone to a remotely exploitable denial of service. This condition occurs upon receipt of a malformed HOST field in a HTTP request for 'shtml.dll'. It is possible to reproduce this condition by sending a HTTP POST request with a HOST header field that is composed of an excessive number of slashes (/). Further details are not known at this time.
Affected Products
- Microsoft IIS 5.0
- Microsoft IIS 5.1
References
- BugTraq: 5907
- CVE: CVE-2002-1908
- URL: http://www.securiteam.com/windowsntfocus/6C00C1F5QA.html