56905 : Microsoft .NET Framework Request Scheduling Crafted HTTP Request Remote DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
9	1767	over 2 years ago	about 1 year ago	10 times	100%

Timeline

Disclosure Date	Vendor Solution Date
2009-08-11	2009-08-11

Description

.NET Framework contains a flaw that may allow a remote denial of service. The issue is triggered by the way ASP.NET scheduling is managed , and will result in loss of availability for the IIS service.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service, Input Manipulation
Impact: Loss of Availability
Solution: Patch / RCS
Exploit: Exploit Rumored
Disclosure: Vendor Verified
OSVDB: Web Related

Technical

This vulnerability appears dependent on IIS 7.0 configured to use Integrated Authentication running in combination with the .NET Framework 2.0.

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft Corporation has released a patch to address this vulnerability.

Products

Microsoft Corporation

.NET Framework

2.0 Service Pack 2

References

CVE ID: 2009-1536 (see also: NVD)
Secunia Advisory ID: 36127
SCIP VulDB ID: 4009
Microsoft Knowledge Base Article: 970957 972591 972592 972593 972594
Microsoft Security Bulletin: MS09-036

Tools & Filters

	40555
	5128

Credit

Alexander Pfandt - Digitaria

CVSSv2 Score

CVSSv2 Base Score = 2.6
Source: nvd.nist.gov | Generated: 2009-08-12 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

2009/08/11 20:37:21 | August Microsoft Patch Tuesday Roundup

from: Rapid7 Network Security Blog

Sheldon here again, with a quick summary of this month’s Microsoft Security updates … 9 advisories, with 19 vulnerabilities covered. Here’s the breakdown: MS09-036: Rated Important. Potential Denial of Service in ASP.NET in Microsoft Vista and 2008, covering 1 vulnerability: CVE-2009-1536. Important to note that this vulnerability only affects systems where IIS 7.0 is installed and ASP.NET [...]

2009/08/14 12:00:00 | MS09-036: Description of the ASP.NET security update for the Microsoft .NET Framework 3.5 and the Microsoft .NET Framework 2.0 Service Pack 1 on Windows Vista: August 11, 2009

from: DotNetSlackers Latest ASP.NET News

972591 ... MS09-036: Description of the ASP.NET security update for the Microsoft .NET Framework 3.5 and the Microsoft .NET Framework 2.0 Service Pack 1 on Windows Vista: August 11, 2009This RSS feed provided by kbAlerz.com.Visit kbAlertz.com to subscribe. It's 100% free and you'll be able to recieve e-mail or RSS updates for the technologies you pick from the Microsoft Knowledge Base.... Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight.

2009/08/14 12:00:00 | MS09-036: Description of the ASP.NET security update for Microsoft .NET Framework 3.5 and Microsoft .NET Framework 2.0 Service Pack 1 on Windows Vista Service Pack 1 and on Windows Server 2008: August 11, 2009

from: DotNetSlackers Latest ASP.NET News

972593 ... MS09-036: Description of the ASP.NET security update for Microsoft .NET Framework 3.5 and Microsoft .NET Framework 2.0 Service Pack 1 on Windows Vista Service Pack 1 and on Windows Server 2008: August 11, 2009This RSS feed provided by kbAlerz.com.Visit kbAlertz.com to subscribe. It's 100% free and you'll be able to recieve e-mail or RSS updates for the technologies you pick from the Microsoft Knowledge Base....

2009/08/12 06:12:00 | VRT: Microsoft Tuesday Coverage for August 2009

from: Windows 2008 Security

Well, first Microsoft Tuesday after DefCon and as punishment, there are 9 advisories to note with 8 of them being suitable for detection by an IPS/IDS. Microsoft Security Advisory (MS09-036): Microsoft Internet Information Server (IIS) … See original here: VRT: Microsoft Tuesday Coverage for August 2009

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