// For flags

CVE-2023-36039

Microsoft Exchange Server Spoofing Vulnerability

Severity Score

8.0
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Microsoft Exchange Server Spoofing Vulnerability

Vulnerabilidad de suplantaciĆ³n de identidad de Microsoft Exchange Server.

This vulnerability allows remote attackers to relay NTLM credentials on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability.
The specific flaw exists within the SerializationTypeConverter class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to relay NTLM credentials in the context of SYSTEM.

*Credits: Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
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
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-06-20 CVE Reserved
  • 2023-11-14 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-04 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-502: Deserialization of Untrusted Data
CAPEC
References (1)
Affected Vendors, Products, and Versions
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"
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_12
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_13
Affected