CVE-2013-1336: Input Validation

Published May 15, 2013
·
Updated

The Common Language Runtime (CLR) in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not properly check signatures, which allows remote attackers to make undetected changes to signed XML documents via unspecified vectors that preserve signature validity, aka "XML Digital Signature Spoofing Vulnerability."

Affected Software

5 affected components
Microsoft .NET Framework=2.0-sp2
Microsoft .NET Framework=3.5
Microsoft .NET Framework=3.5.1
Microsoft .NET Framework=4.0
Microsoft .NET Framework=4.5

Event History

May 15, 2013
CVE Published
via MITRE·01:00 AM
Data Sourced
via MITRE·01:00 AM
Description

Frequently Asked Questions

1

What is the severity of CVE-2013-1336?

CVE-2013-1336 has a severity rating of important, indicating a significant risk that could lead to exploitation.

2

How do I fix CVE-2013-1336?

To fix CVE-2013-1336, you should apply the latest security updates provided by Microsoft for the affected .NET Framework versions.

3

What versions of .NET Framework are affected by CVE-2013-1336?

CVE-2013-1336 affects Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4.0, and 4.5.

4

What type of attack does CVE-2013-1336 enable?

CVE-2013-1336 enables remote attackers to undetected changes to signed XML documents while preserving signature validity.

5

Is CVE-2013-1336 related to signature verification?

Yes, CVE-2013-1336 involves improper signature verification in the Common Language Runtime of the .NET Framework.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203