Known Exploited Vulnerability
9.8
CRITICAL
CVE-2020-0646
Microsoft .NET Framework Remote Code Execution Vul - [Actively Exploited]
Description

A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.

INFO

Published Date :

Jan. 14, 2020, 11:15 p.m.

Last Modified :

Nov. 21, 2024, 4:53 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Microsoft .NET Framework contains an improper input validation vulnerability that allows for remote code execution.

Required Action :

Apply updates per vendor instructions.

Notes :

https://nvd.nist.gov/vuln/detail/CVE-2020-0646

Public PoC/Exploit Available at Github

CVE-2020-0646 has a 18 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-0646 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_10
2 Microsoft windows_7
3 Microsoft windows_8.1
4 Microsoft windows_rt_8.1
5 Microsoft windows_server_2008
6 Microsoft windows_server_2012
7 Microsoft windows_server_2016
8 Microsoft .net_framework
9 Microsoft windows_server_2019
: Total Affected Vendor : 1 | Products : 9
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-2020-0646.

URL Resource
http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html Exploit Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646 Patch Vendor Advisory
http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html Exploit Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646 Patch Vendor Advisory

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).

Profile Photo
Vignesh2712/BigBountyRecon

None

C#

Updated: 7 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : May 8, 2024, 11:03 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
scrumfox/BugBountyReconNet

None

C#

Updated: 1 year, 4 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 13, 2023, 2:52 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
Ashadowkhan/BigBountyRecontoolsexe

None

C#

Updated: 1 year, 8 months ago
0 stars 0 fork 0 watcher
Born at : April 15, 2023, 6:25 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
lnick2023/nicenice

None

Updated: 1 year, 11 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 11, 2023, 1:21 p.m. This repo has been linked 1044 different CVEs too.
Profile Photo
NAVIN-HACSOCIETY/AdrishyaReconDorker

AdrishyaReconDorker tool utilises 58 different techniques using various Google dorks and open source tools to expedite the process of initial reconnaissance on the target organisation.

Updated: 2 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : Oct. 14, 2022, 7 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
kartikhunt3r/AdrishyaReconDorker

AdrishyaReconDorker tool utilises 58 different techniques using various Google dorks and open source tools to expedite the process of initial reconnaissance on the target organisation.

adrishya bash bugbounty dork dorker exe python recon adrishyadorker adrishyarecondorker linux windows cross-platform hacktoberfest

Updated: 11 months ago
5 stars 3 fork 3 watcher
Born at : Sept. 24, 2022, 12:47 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
H4cksploit/bug-bounty-recon

Recon tool utilises 58 different techniques using various Google dorks and open source tools to expedite the process of initial reconnaissance on the target organisation

C#

Updated: 3 months, 4 weeks ago
7 stars 1 fork 1 watcher
Born at : May 28, 2022, 7:12 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
Ostorlab/KEV

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 2 weeks, 5 days ago
548 stars 35 fork 35 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1228 different CVEs too.
Profile Photo
Amar224/best_google_dorks_tool

None

C#

Updated: 1 year, 3 months ago
5 stars 1 fork 1 watcher
Born at : March 16, 2022, 5:17 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
SexyBeast233/SecBooks

安全类各家文库大乱斗

HTML CSS JavaScript Go Python Shell C

Updated: 2 weeks, 5 days ago
982 stars 241 fork 241 watcher
Born at : Feb. 15, 2022, 3:14 a.m. This repo has been linked 568 different CVEs too.
Profile Photo
aftabkhan25/Tool2

None

Updated: 3 years, 6 months ago
0 stars 0 fork 0 watcher
Born at : June 2, 2021, 11:49 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Th3l0newolf/AdvanceRecon-Dorks

None

Updated: 2 months, 3 weeks ago
13 stars 5 fork 5 watcher
Born at : May 25, 2021, 10:08 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
preemptive-cyber-security/BigBountyRecon

BigBountyRecon tool utilises 58 different techniques using various Google dorks and open source tools to expedite the process of initial reconnaissance on the target organisation.

C#

Updated: 8 months ago
2 stars 1 fork 1 watcher
Born at : May 7, 2021, 5:13 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
PreemptiveCyberSec/BigBountyRecon

BigBountyRecon tool utilises 58 different techniques using various Google dorks and open source tools to expedite the process of initial reconnaissance on the target organisation.

C#

Updated: 3 years, 4 months ago
1 stars 0 fork 0 watcher
Born at : May 7, 2021, 5:10 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Viralmaniar/BigBountyRecon

BigBountyRecon tool utilises 58 different techniques using various Google dorks and open source tools to expedite the process of initial reconnaissance on the target organisation.

osint recon reconnaissance cybersecurity offensive-security pentesting pentest-tool bugbounty bugbounty-tool bugbountytips red-team red-teaming blue-team purple-team purple-teams

C#

Updated: 3 weeks, 1 day ago
1264 stars 240 fork 240 watcher
Born at : Jan. 10, 2021, 3:35 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-0646 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-0646 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://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html
    Added Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CWE CWE-78 CWE-91
  • Modified Analysis by [email protected]

    Jan. 01, 2022

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html No Types Assigned http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html Exploit, Third Party Advisory, VDB Entry
    Removed CWE NIST CWE-20
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-20 CWE-20 CWE-78
  • CVE Modified by [email protected]

    Mar. 26, 2020

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/156930/SharePoint-Workflows-XOML-Injection.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 16, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0646 Patch, Vendor Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*
    Added CPE Configuration AND OR *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:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-0646 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-2020-0646 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

97.43 }} 0.01%

score

0.99973

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: