HTTP: IIS 4.0/5.0 Malformed Extension Data
This signature detects attempts to exploit a known vulnerability against Microsoft IIS 4.05 and 5.0. Attackers can send a long complex URL that appears to contain a large number of file extensions (malformed extension data in URL) to the server and create a denial of service.
Extended Description
An IIS4 sample site "ExAir" has three ASP pages, that if called directly without having the sample site dlls running, will cause the server CPU to increase to 100%. These pages include: Exair - root/search/advsearch.asp Exair - root/search/query.asp Exair -root/search/search.asp
References
BugTraq: 193
CVE: CVE-2000-0408
URL: http://securityfocus.com/bid/1190 http://www.microsoft.com/technet/security/bulletin/ms00-030.asp
Short Name
HTTP:IIS:MALFORMED-EXT-DATA
Severity
Minor
Recommended
False
Recommended Action
None
Category
HTTP
Keywords
4.0/5.0 CVE-2000-0408 Data Extension IIS Malformed bid:193
Release Date
05/08/2003
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown
CVSS Score
5.0