CVE-2017-0248
Microsoft .NET Framework Security Feature Bypass Certificate Validation Vulnerability
Description
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."
INFO
Published Date :
May 12, 2017, 2:29 p.m.
Last Modified :
April 20, 2025, 1:37 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Apply the appropriate security updates for the affected Microsoft .NET Framework versions.
- Reboot the system if required by the updates.
Public PoC/Exploit Available at Github
CVE-2017-0248 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-0248.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/98117 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038458 | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248 | Patch Vendor Advisory |
| http://www.securityfocus.com/bid/98117 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038458 | |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248 | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-0248 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-0248
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
C#
A minimal C# application that deliberately references NuGet packages with known vulnerabilities.
C#
Sample project to test using Microsoft.CodeDom.Providers.DotNetCompilerPlatform 2.0.1 causing CVE-2017-0248
C#
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-0248 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-0248 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/98117 Added Reference http://www.securitytracker.com/id/1038458 Added Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-254 CWE-295 -
CVE Modified by [email protected]
Jul. 08, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1038458 [No Types Assigned] -
Initial Analysis by [email protected]
May. 25, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248 Patch, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/98117 No Types Assigned http://www.securityfocus.com/bid/98117 Third Party Advisory, VDB Entry Added CWE CWE-254 Added CPE Configuration OR *cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 16, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/98117 [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.09 }} -1.59%
score
0.75955
percentile