Description
Scripting.FileSystemObject in asp.dll for Microsoft IIS 4.0 and 5.0 allows local or remote attackers to cause a denial of service (crash) via (1) creating an ASP program that uses Scripting.FileSystemObject to open a file with an MS-DOS device name, or (2) remotely injecting the device name into ASP programs that internally use Scripting.FileSystemObject.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 2
- Microsoft IIS 4.0/5.0 - Device File Local Denial of Service EDB-20989 · dos · Jul 4, 2001 · verified
- Microsoft IIS 4.0/5.0 - Device File Remote Denial of Service EDB-20991 · dos · Jul 4, 2001 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- iis-device-asp-dos(6800) vdb-entry
- 2973 vdb-entry
- 20010704 NERF Advisory #4: MS IIS local and remote DoS mailing-list