Known Exploited Vulnerability
9.8
CRITICAL
CVE-2023-23397
Microsoft Office Outlook Privilege Escalation Vuln - [Actively Exploited]
Description

Microsoft Outlook Elevation of Privilege Vulnerability

INFO

Published Date :

March 14, 2023, 5:15 p.m.

Last Modified :

Aug. 14, 2024, 8:03 p.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 Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.

Required Action :

Apply updates per vendor instructions.

Notes :

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397, https://msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/,

Public PoC/Exploit Available at Github

CVE-2023-23397 has a 68 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-2023-23397 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
: Total Affected Vendor : 1 | Products : 4
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-2023-23397.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397 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
Symbolexe/CVE-2023-23397

CVE-2023-23397: Remote Code Execution Vulnerability in Microsoft Outlook

Updated: 2 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : June 22, 2024, 2:25 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
0xMarcio/cve

Latest CVEs with their Proof of Concept exploits.

Python

Updated: 1 week, 3 days ago
5 stars 1 fork 1 watcher
Born at : May 24, 2024, 11:02 a.m. This repo has been linked 78 different CVEs too.
Profile Photo
HamitKURT/starred-repos

None

Updated: 5 months ago
0 stars 0 fork 0 watcher
Born at : April 13, 2024, 7:45 a.m. This repo has been linked 16 different CVEs too.
Profile Photo
TheUnknownSoul/CVE-2023-23397-PoW

Proof of Work of CVE-2023-23397 for vulnerable Microsoft Outlook client application.

exploitation hacking msoutlook netntlm smb

Python

Updated: 5 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : March 20, 2024, 9:49 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
lions2012/Penetration_Testing_POC

渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypass oa-getshell cve-cms

Assembly Python Shell PHP C++ C Go Ruby HTML Java

Updated: 1 month, 2 weeks ago
4 stars 0 fork 0 watcher
Born at : Feb. 7, 2024, 2:08 p.m. This repo has been linked 305 different CVEs too.
Profile Photo
sarsaeroth/CVE-2023-23397-POC

C implementation of Outlook 0-click vulnerability

Updated: 7 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Feb. 7, 2024, 7:08 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
d4n-sec/d4n-sec.github.io

None

CSS HTML JavaScript

Updated: 7 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Feb. 2, 2024, 2:11 p.m. This repo has been linked 494 different CVEs too.
Profile Photo
oscpname/OSCP_cheat

None

Python C Shell

Updated: 8 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Jan. 7, 2024, 10:22 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
SirElmard/ethical_hacking

Ethical Hacking Repository

Python C Shell

Updated: 8 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Jan. 2, 2024, 9:12 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
ducnorth2712/CVE-2023-23397

None

Updated: 8 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Dec. 28, 2023, 2:20 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
revanmalang/OSCP

OSCP Cheat Sheet

cheatsheet oscp

Python C Shell

Updated: 1 month, 1 week ago
7 stars 4 fork 4 watcher
Born at : Dec. 17, 2023, 12:31 p.m. This repo has been linked 61 different CVEs too.
Profile Photo
BC-SECURITY/Moriarty

Moriarty is designed to enumerate missing KBs, detect various vulnerabilities, and suggest potential exploits for Privilege Escalation in Windows environments.

C#

Updated: 3 weeks, 4 days ago
467 stars 54 fork 54 watcher
Born at : Dec. 11, 2023, 2:15 p.m. This repo has been linked 26 different CVEs too.
Profile Photo
Pushkarup/CVE-2023-23397

This script exploits CVE-2023-23397, a Zero-Day vulnerability in Microsoft Outlook, allowing the generation of malicious emails for testing and educational purposes.

Python

Updated: 6 months, 3 weeks ago
3 stars 0 fork 0 watcher
Born at : Oct. 26, 2023, 9:26 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
xhref/OSCP

None

Python C Shell

Updated: 10 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 20, 2023, 5:26 p.m. This repo has been linked 61 different CVEs too.
Profile Photo
kgwanjala/oscp-cheatsheet

None

Python C Shell

Updated: 10 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 20, 2023, 4:53 a.m. This repo has been linked 61 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-2023-23397 vulnerability anywhere in the article.

  • cloudsecurityalliance.org
Navigating the Shadows: Safeguarding AI Infrastructure Amidst CVE-2023-48022

Originally published by Truyo.We all want to leverage AI, but models are only as good as the data used to train them. Often, training data is comprised of confidential information. How do you balance ... Read more

Published Date: Aug 06, 2024 (1 month, 1 week ago)
CVE-2023-48022 CVE-2023-23397
  • Help Net Security
Researchers unearth MotW bypass technique used by threat actors for years

Threat actors have been abusing a bug in how Windows handles LNK files with non-standard target paths and internal structures to prevent in-built protections from stopping malicious payloads and trick ... Read more

Published Date: Aug 06, 2024 (1 month, 1 week ago)
CVE-2024-38856 CVE-2023-24880 CVE-2023-23397
  • krebsonsecurity.com
Microsoft Patch Tuesday, July 2024 Edition

Microsoft Corp. today issued software updates to plug at least 139 security holes in various flavors of Windows and other Microsoft products. Redmond says attackers are already exploiting at least two ... Read more

Published Date: Jul 09, 2024 (2 months, 1 week ago)
CVE-2024-38112 CVE-2024-38080 CVE-2024-38077 CVE-2024-38076 CVE-2024-38074 CVE-2024-38053 CVE-2024-38021 CVE-2023-23397

The following table lists the changes that have been made to the CVE-2023-23397 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.

  • Modified Analysis by [email protected]

    Aug. 14, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:* *cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:office:2021:*:*:*:ltsc:*:*:* *cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:* *cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:rt:*:*:* *cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:* 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:2013:sp1:*:*:-:*:*:* *cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:rt:*:*:* *cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 29, 2024

    Action Type Old Value New Value
    Added CWE Microsoft Corporation CWE-20
  • CVE Modified by [email protected]

    May. 28, 2024

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

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Mar. 20, 2023

    Action Type Old Value New Value
    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://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397 No Types Assigned https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397 Patch, Vendor Advisory
    Added CWE NIST CWE-294
    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:2021:*:*:*:ltsc:*:*:* *cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:*:*:*:* *cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:rt:*:*:* *cpe:2.3:a:microsoft:outlook: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-2023-23397 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-2023-23397 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-23: File Content Injection File Content Injection CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-73: User-Controlled Filename User-Controlled Filename CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-83: XPath Injection XPath Injection CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-88: OS Command Injection OS Command Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-136: LDAP Injection LDAP Injection CAPEC-153: Input Data Manipulation Input Data Manipulation CAPEC-182: Flash Injection Flash Injection CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-250: XML Injection XML Injection CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-473: Signature Spoof Signature Spoof CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-664: Server Side Request Forgery Server Side Request Forgery CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-94: Adversary in the Middle (AiTM) Adversary in the Middle (AiTM) CAPEC-102: Session Sidejacking Session Sidejacking CAPEC-509: Kerberoasting Kerberoasting CAPEC-555: Remote Services with Stolen Credentials Remote Services with Stolen Credentials CAPEC-561: Windows Admin Shares with Stolen Credentials Windows Admin Shares with Stolen Credentials CAPEC-644: Use of Captured Hashes (Pass The Hash) Use of Captured Hashes (Pass The Hash) CAPEC-645: Use of Captured Tickets (Pass The Ticket) Use of Captured Tickets (Pass The Ticket) CAPEC-652: Use of Known Kerberos Credentials Use of Known Kerberos Credentials CAPEC-701: Browser in the Middle (BiTM) Browser in the Middle (BiTM)
Exploit Prediction

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

86.73 }} -1.10%

score

0.98665

percentile

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