Description

Microsoft Outlook Remote Code Execution Vulnerability

INFO

Published Date :

Feb. 13, 2024, 6:15 p.m.

Last Modified :

May 29, 2024, 12:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2024-21378 has a 4 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-2024-21378 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 office
2 Microsoft 365_apps
3 Microsoft outlook
4 Microsoft office_long_term_servicing_channel
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-2024-21378.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21378 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).

Finds and download all attachments in hidden items

C#

Updated: 5 months ago
2 stars 0 fork 0 watcher
Born at : April 26, 2024, 3:25 p.m. This repo has been linked 1 different CVEs too.

PoC Exploit for Outlook Vulnerability, CVE-2024-21378

Python

Updated: 7 months, 3 weeks ago
7 stars 4 fork 4 watcher
Born at : March 12, 2024, 2:19 p.m. This repo has been linked 1 different CVEs too.

This repository contains an exploit for targeting Microsoft Outlook through Exchange Online, leveraging a vulnerability to execute arbitrary code via COM DLLs. The exploit utilizes a modified version of Ruler to send a malicious form as an email, triggering the execution upon user interaction within the Outlook thick client.

Python

Updated: 4 months, 2 weeks ago
7 stars 3 fork 3 watcher
Born at : March 12, 2024, 2:11 p.m. This repo has been linked 1 different CVEs too.

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 1 month, 4 weeks ago
6375 stars 1107 fork 1107 watcher
Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 904 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-2024-21378 vulnerability anywhere in the article.

  • Cyber Security News
0-Click Outlook Vulnerability Triggered RCE When Email is Opened – Technical Analysis

Morphisec researchers have recently uncovered a critical vulnerability in Microsoft Outlook, identified as CVE-2024-30103. It can execute malicious code as soon as an email is opened. We will explore ... Read more

Published Date: Aug 13, 2024 (2 months, 3 weeks ago)
  • 0patch.com
Micropatches For Microsoft Outlook Remote Code Execution Vulnerability (CVE-2024-21378)

In February 2024, Microsoft released a patch for CVE-2024-21378, a vulnerability in Microsoft Outlook that allowed an attacker to execute arbitrary code on user's computer when the user opened a malic ... Read more

Published Date: Jun 24, 2024 (4 months, 1 week ago)

The following table lists the changes that have been made to the CVE-2024-21378 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. 29, 2024

    Action Type Old Value New Value
    Added CWE Microsoft Corporation CWE-94
    Removed CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    May. 28, 2024

    Action Type Old Value New Value
    Removed CWE Microsoft Corporation CWE-94
    Removed CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Apr. 11, 2024

    Action Type Old Value New Value
    Added CWE Microsoft Corporation CWE-94
    Removed CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    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. 01, 2024

    Action Type Old Value New Value
    Changed Reference Type https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21378 No Types Assigned https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21378 Patch, Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:* *cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Feb. 13, 2024

    Action Type Old Value New Value
    Added Description Microsoft Outlook Remote Code Execution Vulnerability
    Added Reference Microsoft Corporation https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21378 [No types assigned]
    Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
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-2024-21378 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-2024-21378 weaknesses.

Exploit Prediction

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

0.06 }} -0.00%

score

0.23086

percentile

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