Description

Microsoft SharePoint Server Remote Code Execution Vulnerability

INFO

Published Date :

March 11, 2021, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 5:57 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-27076 has a 8 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-2021-27076 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 sharepoint_foundation
2 Microsoft sharepoint_server
3 Microsoft business_productivity_servers
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-2021-27076.

URL Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076 Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-276/ Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076 Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-276/ Third Party 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).

None

C#

Updated: 3 weeks ago
1 stars 0 fork 0 watcher
Born at : Nov. 29, 2024, 3:14 p.m. This repo has been linked 17 different CVEs too.

None

C#

Updated: 3 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 3, 2024, 7:41 p.m. This repo has been linked 17 different CVEs too.

Resources to learn about Insecure Deserialization

Updated: 2 weeks, 5 days ago
6 stars 0 fork 0 watcher
Born at : April 17, 2024, 7 p.m. This repo has been linked 20 different CVEs too.

None

Updated: 7 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 27, 2024, 3:28 p.m. This repo has been linked 22 different CVEs too.

None

C#

Updated: 9 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 25, 2024, 3:15 p.m. This repo has been linked 17 different CVEs too.

差异:输出macos 能运行的工具

C#

Updated: 1 year ago
3 stars 0 fork 0 watcher
Born at : Nov. 30, 2023, 6:16 a.m. This repo has been linked 17 different CVEs too.

None

Updated: 1 month, 3 weeks ago
24 stars 3 fork 3 watcher
Born at : June 30, 2021, 6:25 a.m. This repo has been linked 5 different CVEs too.

Deserialization payload generator for a variety of .NET formatters

C#

Updated: 2 weeks, 2 days ago
3252 stars 473 fork 473 watcher
Born at : Sept. 18, 2017, 5:48 p.m. This repo has been linked 17 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-2021-27076 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-27076 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 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076
    Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-276/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Dec. 29, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Initial Analysis by [email protected]

    Mar. 16, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27076 Patch, Vendor Advisory
    Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-276/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-276/ Third Party Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:a:microsoft:business_productivity_servers:2010:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:* *cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:* *cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 11, 2021

    Action Type Old Value New Value
    Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-276/ [No Types Assigned]
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-2021-27076 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-2021-27076 weaknesses.

Exploit Prediction

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

3.06 }} -2.61%

score

0.90784

percentile

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