CVE-2001-1243 Denial of service in n/a
Attackers can crash Microsoft IIS servers by exploiting Scripting.FileSystemObject with MS-DOS device names, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2001-1243?
CVE-2001-1243 is a medium-severity denial of service vulnerability in Microsoft Internet Information Server, published on 3 May 2002. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2001-1243?
It affects 2 products.
Products include Microsoft Internet Information Server, Microsoft Internet Information Services.
How do I fix CVE-2001-1243?
No fix has been published for CVE-2001-1243 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2001-1243 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-1243 exists.
Public exploit code: 2 Exploit-DB entries.
Other vulnerabilities in Microsoft Internet Information Server
- CVE-2008-0075 Code injection in n/a
- CVE-1999-1376 Buffer overflow in fpcount.exe in IIS 4.0 with FrontPage Server Extensions allows remote attackers to execute arbitrary commands.
- CVE-1999-0407 By default, IIS 4.0 has a virtual directory /IISADMPWD which contains files that can be used as proxies for brute force password attacks, or
- CVE-1999-0874 Memory corruption in n/a
- CVE-2009-3023 Memory corruption in n/a
Sources
Also known as GHSA-385r-ghm4-jjf9.