CVE-2013-1337 Auth bypass in n/a

What is CVE-2013-1337?

CVE-2013-1337 is a high-severity authentication bypass vulnerability in Microsoft .Net Framework, published on 15 May 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Microsoft .NET Framework 4.5 does not properly create policy requirements for custom Windows Communication Foundation (WCF) endpoint authentication in certain situations involving passwords over HTTPS, which allows remote attackers to bypass authentication by sending queries to an endpoint, aka "Authentication Bypass Vulnerability."

Weakness: CWE-287

Which versions are affected by CVE-2013-1337?

It affects 1 product.

Products include Microsoft .Net Framework.

How do I fix CVE-2013-1337?

No fix has been published for CVE-2013-1337 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2013-1337 being exploited?

There is no known exploitation of CVE-2013-1337 in the wild and no public exploit code.

Other vulnerabilities in Microsoft .Net Framework

• CVE-2020-0646 Microsoft .NET Framework Remote Code Execution Exploited Critical 9.8
• CVE-2017-8759 Microsoft .NET Framework Remote Code Execution Exploited High 7.8
• CVE-2015-1671 Microsoft Windows Remote Code Execution Exploited High 7.8
• CVE-2024-29059 Microsoft .NET Framework Information Disclosure Exploited High 7.5
• CVE-2014-4073 Privilege escalation in n/a Critical 10.0

All Microsoft .Net Framework vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-73vm-jqp4-fcg6.