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MS13-007 - Vulnerability in Open Data Protocol Could Allow Denial of Service (2769327)

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Vulnerability name/brief description MS13-007 - Vulnerability in Open Data Protocol Could Allow Denial of Service (2769327)
CVE/CAN name
Vendor threat level Important
SophosLabs threat level low
Solution MS13-007
Vendor description This security update resolves a privately reported vulnerability in the Open Data (OData) protocol. The vulnerability could allow denial of service if an unauthenticated attacker sends specially crafted HTTP requests to an affected site. Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate outside the enterprise perimeter. Best practices recommend that systems that are connected to the Internet have a minimal number of ports exposed.
SophosLabs comments TCP ports 80 and 443 are typically used for OData access. Blocking these ports at the firewall where feasible will mitigate exposure to this vulnerability. Administrators could also enforce client authentication for access to IIS servers.
SophosLabs testing result No SophosLabs testing result found
Currently known exploits No currently known exploits found
First sample seen No samples found
Discovery date 08 Jan 2013
Affected software Microsoft .NET Framework 3.5 Service Pack 1
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4
Management OData IIS Extension
  • MAPP
  • January 8, 2013 - Initial analysis written

Explanation of terms

Vulnerability Name/Brief Description:

Vendor identifier plus a brief description of the type of attack.


Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.

Vendor Threat Level:

Threat level assigned by the vendor

SophosLabs Threat Level:

Threat level assigned by SophosLabs

  • LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
  • MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
  • HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
  • CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.


Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.

Vendor Description:

Summary of the cause and potential effect of the vulnerability provided by the vendor.

SophosLabs Comments:

SophosLabs' opinions and observations of the vulnerability in question.

SophosLabs Testing Result:

Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.

Currently Known Exploits:

List of identities for known exploits, if applicable.

First Sample Seen:

Date of the first sample seen by SophosLabs.

Discovery Date:

Date of the earliest known publically disclosed advisory.

Affected Software:

Vulnerable platforms and software versions.