8.8
HIGH
CVE-2021-28482
Microsoft Exchange Server Path Traversal Remote Code Execution
Description

Microsoft Exchange Server Remote Code Execution Vulnerability

INFO

Published Date :

April 13, 2021, 8:15 p.m.

Last Modified :

Dec. 29, 2023, 1:15 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-28482 has a 14 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-2021-28482 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 exchange_server
: Total Affected Vendor : 1 | Products : 1
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-2021-28482.

URL Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28482 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
NaInSec/CVE-PoC-in-GitHub

All CVE - PoC in GitHub

poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate

Updated: 2 months, 3 weeks ago
5 stars 2 fork 2 watcher
Born at : March 22, 2024, 3:58 p.m. This repo has been linked 928 different CVEs too.
Profile Photo
zecool/cve

None

Updated: 8 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : March 11, 2024, 1:21 p.m. This repo has been linked 930 different CVEs too.
Profile Photo
whoforget/CVE-POC

None

Updated: 1 year, 7 months ago
0 stars 2 fork 2 watcher
Born at : April 8, 2023, 6:19 a.m. This repo has been linked 923 different CVEs too.
Profile Photo
k0mi-tg/CVE-POC

None

Updated: 9 months, 1 week ago
20 stars 3 fork 3 watcher
Born at : Feb. 14, 2023, 6:10 p.m. This repo has been linked 921 different CVEs too.
Profile Photo
WhooAmii/POC_to_review

None

Updated: 9 months ago
2 stars 2 fork 2 watcher
Born at : Nov. 25, 2022, 5:43 p.m. This repo has been linked 930 different CVEs too.
Profile Photo
soosmile/POC

None

Updated: 4 months, 3 weeks ago
8 stars 1 fork 1 watcher
Born at : June 21, 2022, 7:45 a.m. This repo has been linked 943 different CVEs too.
Profile Photo
timb-machine-mirrors/testanull-CVE-2021-28482.py

Clone from gist

Python

Updated: 1 year, 7 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 5, 2022, 11:26 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
FDlucifer/Proxy-Attackchain

Proxylogon & Proxyshell & Proxyoracle & Proxytoken & All exchange server history vulns summarization :)

attackchains exploit vulnerability exchange-server golang python-script proxylogon proxyshell proxyoracle proxytoken proxyrelay cve-2021-42321 proxymaybeshell proxynotshell

Go Python C C# Batchfile Ruby ASP.NET HTML PowerShell JavaScript

Updated: 2 months, 2 weeks ago
499 stars 102 fork 102 watcher
Born at : Nov. 27, 2021, 1:32 p.m. This repo has been linked 37 different CVEs too.
Profile Photo
tzwlhack/Vulnerability

None

Updated: 2 months, 2 weeks ago
66 stars 14 fork 14 watcher
Born at : Oct. 13, 2021, 4:56 a.m. This repo has been linked 175 different CVEs too.
Profile Photo
bhassani/Recent-CVE

None

C

Updated: 2 years, 5 months ago
4 stars 0 fork 0 watcher
Born at : June 1, 2021, 5:04 p.m. This repo has been linked 21 different CVEs too.
Profile Photo
KevinWorst/CVE-2021-28482_Exploit

None

Updated: 3 years, 4 months ago
0 stars 0 fork 0 watcher
Born at : May 21, 2021, 7:34 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
Shadow0ps/CVE-2021-28482-Exchange-POC

POC from TestANull for CVE-2021-28482 on Exchange Server

Python

Updated: 3 months, 1 week ago
45 stars 14 fork 14 watcher
Born at : May 3, 2021, 1:54 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
ZephrFish/CVE-2021-28480_HoneyPoC3

DO NOT RUN THIS.

Shell

Updated: 3 months, 1 week ago
10 stars 7 fork 7 watcher
Born at : April 21, 2021, 9:50 a.m. This repo has been linked 5 different CVEs too.
Profile Photo
n1sh1th/CVE-POC

This is collection of latest CVE POCs.

cve latest-cve cve-poc security

Updated: 7 months ago
30 stars 7 fork 7 watcher
Born at : Oct. 6, 2020, 4:27 a.m. This repo has been linked 21 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-2021-28482 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-28482 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 [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
    Changed Description Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28480, CVE-2021-28481, CVE-2021-28483. Microsoft Exchange Server Remote Code Execution Vulnerability
    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]

    Apr. 14, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    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-2021-28482 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28482 Patch, Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:* *cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:* *cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:* *cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:* *cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*
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-2021-28482 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-2021-28482 weaknesses.

Exploit Prediction

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

1.27 }} -0.45%

score

0.85922

percentile

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