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| Rule General Information |
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| Release Date: | 2017-09-04 | |
| Rule Name: | WEB-OTHER Microsoft ASP.NET Hash Collision Denial of Service Vulnerability -2 (CVE-2011-3414) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| Description: | The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters, aka "Collisions in HashTable May Cause DoS Vulnerability." | |
| Impact: | An attacker can launch a denial of service attack by exploiting the vulnerability successfully. | |
| Affected OS: | Windows, Other Unix, Linux | |
| Reference: | MicrosoftSecurityBulletin:MS11-100 |
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| Solutions |
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| Microsoft has released a patch MS11-100 to eliminate the vulnerability. The patch can be downloaded at http://technet.microsoft.com/security/bulletin/MS11-100 |