Microsoft .NET Bugs Let Remote Users Bypass ASLR Security Protections and Execute Arbitrary Code
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SecurityTracker Alert ID: 1031021 |
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SecurityTracker URL: http://securitytracker.com/id/1031021
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CVE Reference:
CVE-2014-4073, CVE-2014-4121, CVE-2014-4122
(Links to External Site)
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Date: Oct 14 2014
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 2.0 SP2, 3.5, 3.5.1, 4.0, 4.5, 4.5.1, 4.5.2
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Description:
Several vulnerabilities were reported in Microsoft .NET. A remote user can cause arbitrary code to be executed on the target user's system. A user can bypass the Address Space Layout Randomization (ASLR) security feature.
A remote user can create a specially crafted internationalized resource identifier to a .NET application to trigger a parsing error and execute arbitrary code on the target system [CVE-2014-4121].
A user can bypass the Address Space Layout Randomization (ASLR) security feature [CVE-2014-4122].
The ClickOnce feature processes data prior to verification. A remote user that can exploit an independent flaw in Internet Explorer may be able to allow the ClickOnce installer process to run outside of Protected Mode with elevated privileges [CVE-2014-4073].
James Forshaw of Context Information Security reported the ClickOnce vulnerability.
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Impact:
A remote user can create a URI that, when loaded by the target user, will execute arbitrary code on the target user's system.
A user can bypass the Address Space Layout Randomization (ASLR) security feature.
A user can run code with elevated privileges.
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Solution:
The vendor has issued a fix.
A patch matrix is available in the vendor's advisory.
A restart is required.
The Microsoft advisory is available at:
https://technet.microsoft.com/library/security/ms14-057
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Vendor URL: technet.microsoft.com/library/security/ms14-057 (Links to External Site)
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Cause:
Input validation error
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Underlying OS: Windows (2003), Windows (2008), Windows (2012), Windows (7), Windows (8), Windows (Vista)
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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