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Microsoft Windows TCP/IP Stack Two Vulnerabilities

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Release Date:  2012-05-08    Views:  2,267

Secunia Advisory SA49114

Where:

Local system

Impact:

Security Bypass, Privilege escalation

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Two vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to bypass certain security restrictions and gain escalated privileges.

1) An error within the TCP/IP stack (tcpip.sys) does not properly filter outbound packets when an outbound firewall rule is applied. This can be exploited to bypass the Windows Firewall and send otherwise restricted packets.

2) A double free error exists within the TCP/IP stack (tcpip.sys) when handling IPv6 address binding on a local interface.

Successful exploitation of this vulnerability allows execution of arbitrary code in context of another process.

NOTE: This vulnerability only affects Windows 7 and Windows Server 2008 R2.


Solution:
Apply patches.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) The vendor credits Bojan Zdrnja, INFIGO IS.
2) Reported by the vendor.

Original Advisory:
MS12-032 (KB2688338):
http://technet.microsoft.com/en-us/security/bulletin/ms12-032

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Windows TCP/IP Stack Two Vulnerabilities

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