CVE-2022-41040

Microsoft Exchange Server Server-Side Request Forgery Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

94.2%

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

Act

*SSVC

Descriptions

Microsoft Exchange Server Elevation of Privilege Vulnerability

Una Vulnerabilidad de Elevación de Privilegios en Microsoft Exchange Server

This vulnerability allows remote attackers to escalate privileges on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability.
The specific flaw exists within the Autodiscover service. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to escalate privileges to resources normally protected from the user.

Microsoft Exchange Server allows for server-side request forgery. Dubbed "ProxyNotShell," this vulnerability is chainable with CVE-2022-41082 which allows for remote code execution.

*Credits: DA-0x43-Dx4-DA-Hx2-Tx2-TP-S-Q from GTSC

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Act

Exploitation

Active

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2022-09-19 CVE Reserved
2022-09-30 Exploited in Wild
2022-10-02 First Exploit
2022-10-03 CVE Published
2022-10-21 KEV Due Date
2025-03-11 CVE Updated
2025-03-30 EPSS Updated

CWE

CWE-918: Server-Side Request Forgery (SSRF)

CAPEC

References (15)

URL	Tag	Source
https://www.kb.cert.org/vuls/id/915563	Third Party Advisory
https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities...	Third Party Advisory

1 - 2 of 2

URL	Date	SRC
https://packetstorm.news/files/id/170066	2022-11-30
https://github.com/kljunowsky/CVE-2022-41040-POC	2023-01-21
https://github.com/TaroballzChen/CVE-2022-41040-metasploit...	2022-10-20
https://github.com/numanturle/CVE-2022-41040	2022-10-02
https://github.com/d3duct1v/CVE-2022-41040	2022-10-06
https://github.com/r3dcl1ff/CVE-2022-41040	2022-10-04
https://github.com/ITPATJIDR/CVE-2022-41040	2022-10-15
https://github.com/CentarisCyber/CVE-2022-41040_Mitigation	2022-10-04
https://github.com/rjsudlow/proxynotshell-IOC-Checker	2023-10-06
https://github.com/0-Gram/CVE-2022-41040	2024-11-23

1 - 10 of 11

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/adviso...	2024-06-28

1 - 1 of 1

URL	Date	SRC
https://msrc.microsoft.com/update-guide/vulnerability/CVE-...	2025-03-11

1 - 1 of 1

Affected Vendors, Products, and Versions (5)

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Exchange Server Search vendor "Microsoft" for product "Exchange Server"				2013 Search vendor "Microsoft" for product "Exchange Server" and version "2013"		cumulative_update_23		Affected
Microsoft Search vendor "Microsoft"		Exchange Server Search vendor "Microsoft" for product "Exchange Server"				2016 Search vendor "Microsoft" for product "Exchange Server" and version "2016"		cumulative_update_22		Affected
Microsoft Search vendor "Microsoft"		Exchange Server Search vendor "Microsoft" for product "Exchange Server"				2016 Search vendor "Microsoft" for product "Exchange Server" and version "2016"		cumulative_update_23		Affected
Microsoft Search vendor "Microsoft"		Exchange Server Search vendor "Microsoft" for product "Exchange Server"				2019 Search vendor "Microsoft" for product "Exchange Server" and version "2019"		cumulative_update_11		Affected
Microsoft Search vendor "Microsoft"		Exchange Server Search vendor "Microsoft" for product "Exchange Server"				2019 Search vendor "Microsoft" for product "Exchange Server" and version "2019"		cumulative_update_12		Affected

1 - 5 of 5