CVE-2016-7270

.NET Framework Information Disclosure Vulnerability

CVE-2016-7270 is fixed in 14 products on 1 platform, first by KB3206632, released December 13, 2016. It is not reported as exploited. Patch Radar priority: High.

HighPublicly disclosed
CVSS
n/a
Important
Exploitation
None reported
Exploitation Unlikely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.2332
97th percentile

<p>An information disclosure vulnerability exists in Microsoft .NET 4.6.2 Framework’s Data Provider for SQL Server that could allow an attacker to access information that should be defended by the <a href="https://technet.microsoft.com/library/security/dn848375.aspx">Always Encrypted</a> feature. The vulnerability is caused when .NET Framework improperly uses a developer-supplied key. When this key is misused, it is also possible for access to data to be temporarily lost.</p> <p>To exploit the vulnerability, an attacker who can access the incorrectly encrypted data could attempt to decrypt the data using an easily guessable key.</p> <p>The security update addresses the vulnerability by correcting the way .NET Framework handles the developer-supplied key, and thus properly defends the data.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft .NET Framework 4.6.2 on Windows 10 Version 1607 for 32-bit Systems KB3206632 Dec 13, 2016
Microsoft .NET Framework 4.6.2 on Windows 10 Version 1607 for x64-based Systems KB3206632 Dec 13, 2016
Microsoft .NET Framework 4.6.2 on Windows 7 for 32-bit Systems Service Pack 1 KB3204805 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows 7 for x64-based Systems Service Pack 1 KB3204805 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows 8.1 for 32-bit systems KB3204802 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows 8.1 for x64-based systems KB3204802 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB3204805 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB3204805 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2012 KB3204801 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2012 (Server Core installation) KB3204801 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2012 R2 KB3204802 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2012 R2 (Server Core installation) KB3204802 Dec 19, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2016 KB3206632 Dec 13, 2016
Microsoft .NET Framework 4.6.2 on Windows Server 2016 (Server Core installation) KB3206632 Dec 13, 2016