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CVE-2020-1597

HIGHCVSS 7.5/10EPSS 6.56%

Last modified

CVE-2020-1597 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. EPSS estimates a 6.56% chance of exploitation in the next 30 days.

Description

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. The update addresses the vulnerability by correcting how the ASP.NET Core web application handles web requests.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
6.56%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MicrosoftAsp.Net Core2.1
MicrosoftAsp.Net Core3.1
MicrosoftVisual Studio 2017>= 15.0, <= 15.8
MicrosoftVisual Studio 2019>= 16.0, <= 16.3
MicrosoftVisual Studio 2019>= 16.5, <= 16.6
FedoraprojectFedora32
FedoraprojectFedora33

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-1597?
A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. The update addresses the vulnerability by correcting how the ASP.NET Core web application handles web requests.
How severe is CVE-2020-1597?
CVE-2020-1597 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.56% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1597?
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.

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Source: NVD / NIST