Ipswitch · Ipswitch Whatsup Professional 2006 · CVE-2006-0911
**Name of the Vulnerable Software and Affected Versions**
Ipswitch WhatsUp Professional 2006
**Description**
The issue allows remote attackers to cause a denial of service, specifically CPU consumption, via crafted requests to "Login.asp". This may involve the `In` and `btnLogIn` parameters, or malformed `btnLogIn` parameters, possibly due to missing or incorrect bracket characters. Examples of such crafted requests include "&btnLogIn=[Log&In]=&" or "&b;tnLogIn=[Log&In]=&" in the URL.
**Recommendations**
For Ipswitch WhatsUp Professional 2006, consider restricting access to the "Login.asp" endpoint until a fix is available. As a temporary workaround, avoid using the `btnLogIn` parameter in the affected API endpoint.