SB2023110256 - Server-side request forgery in Microsoft Exchange server 

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Main Vulnerability Database SB2023110256

SB2023110256 - Server-side request forgery in Microsoft Exchange server

Published: November 2, 2023

Security Bulletin ID SB2023110256
Severity
Medium
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Server-Side Request Forgery (SSRF) (CVE-ID: N/A)

The disclosed vulnerability allows a remote user to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input within CreateAttachmentFromUr(), DownloadDataFromOfficeMarketPlace(), and DownloadDataFromUri() methods. A remote user can send a specially crafted HTTP request and force the application to initiate requests to arbitrary resources.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References