What is the CVSS score of CVE-2017-0247?

CVE-2017-0247 has a CVSS 3.0 base score of 7.5 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 11.1%.

Is there a public PoC exploit available for CVE-2017-0247?

Yes, a public proof-of-concept exploit is available for CVE-2017-0247. Prioritise patching immediately. EPSS: 11.1%.

Is there a patch available for CVE-2017-0247?

Yes, a patch is available for CVE-2017-0247. Update the affected software to the latest version immediately.

Asp Net Model View Controller CVE-2017-0247

HIGH

Improper Input Validation (CWE-20)

2017-05-12 secure@microsoft.com

7.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

May 12, 2017 - 14:29 cve.org

HIGH 7.5

DescriptionCVE.org

A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range.

AnalysisAI

A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 11.1%.

Technical ContextAI

This vulnerability is classified under CWE-20. A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range. Affected products include: Microsoft Asp.Net Model View Controller, Microsoft Microsoft.Aspnetcore.Mvc.Abstractions, Microsoft Microsoft.Aspnetcore.Mvc.Apiexplorer, Microsoft Microsoft.Aspnetcore.Mvc.Cors, Microsoft Microsoft.Aspnetcore.Mvc.Dataannotations. Version information: before 1.0.4.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.