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CVE-2014-0253

UnknownEPSS 38.70%

Last modified

CVE-2014-0253 is a vulnerability of currently unknown severity. Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote attackers to cause a denial of service (ASP.NET daemon hang) via crafted HTTP requests that trigger persistent resource consumption for a (1) stale or (2) closed connection, as exploited in the wild in February 2014, aka "POST Request DoS Vulnerability.". EPSS estimates a 38.70% chance of exploitation in the next 30 days.

Description

Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote attackers to cause a denial of service (ASP.NET daemon hang) via crafted HTTP requests that trigger persistent resource consumption for a (1) stale or (2) closed connection, as exploited in the wild in February 2014, aka "POST Request DoS Vulnerability."

Metrics

EPSS Probability
38.70%

98.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
Microsoft.Net Framework1.1Sp1
Microsoft.Net Framework2.0Sp2
Microsoft.Net Framework3.5—
Microsoft.Net Framework3.5.1—
Microsoft.Net Framework4.0—
Microsoft.Net Framework4.5—
Microsoft.Net Framework4.5.1—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2014-0253?
Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote attackers to cause a denial of service (ASP.NET daemon hang) via crafted HTTP requests that trigger persistent resource consumption for a (1) stale or (2) closed connection, as exploited in the wild in February 2014, aka "POST Request DoS Vulnerability."
How severe is CVE-2014-0253?
Severity scoring for CVE-2014-0253 is pending analysis. The EPSS model estimates a 38.70% probability of exploitation in the next 30 days.
How do I fix CVE-2014-0253?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-0253?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST