Title: Allaire ColdFusion Server 4.5.1 Administrator Login Password DoS Vulnerability
Severity: MODERATE
Description:
Due to a faulty mechanism in the password parsing implementation in authentication requests, it is possible to launch a denial of service attack against Allaire ColdFusion 4.5.1 or previous by inputting a string of over 40 000 characters to the password field in the Administrator login page. CPU utilization could reach up to 100%, bringing the program to halt. The default form for the login page would prevent such an attack. However, a malicious user could download the form locally to their hard drive, modify HTML tag fields, and be able to submit the 40 000 character string to the ColdFusion Server.
Restarting the application would be required in order to regain normal functionality.
Affected Products:
- Allaire ColdFusion Server 2.0.0
- Allaire ColdFusion Server 3.0.0
- Allaire ColdFusion Server 3.0.1
- Allaire ColdFusion Server 3.1.0
- Allaire ColdFusion Server 3.1.1
- Allaire ColdFusion Server 3.1.2
- Allaire ColdFusion Server 4.0.0
- Allaire ColdFusion Server 4.0.1
- Allaire ColdFusion Server 4.5.0
- Allaire ColdFusion Server 4.5.1
References:
- Allaire: Cold Fusion Server Product Home Page
- Allaire: Security Best Practice: Securing the ColdFusion Administrator
- Foundstone: Security Advisory (FS-060700-1-CFM)
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