CVE Vulnerabilities

CVE-2021-34473

Server-Side Request Forgery (SSRF)

Published: Jul 14, 2021 | Modified: Dec 28, 2023
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
10 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

Microsoft Exchange Server Remote Code Execution Vulnerability

Weakness

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Affected Software

Name Vendor Start Version End Version
Exchange_server Microsoft 2013-cumulative_update_23 (including) 2013-cumulative_update_23 (including)
Exchange_server Microsoft 2016-cumulative_update_19 (including) 2016-cumulative_update_19 (including)
Exchange_server Microsoft 2016-cumulative_update_20 (including) 2016-cumulative_update_20 (including)
Exchange_server Microsoft 2019-cumulative_update_8 (including) 2019-cumulative_update_8 (including)
Exchange_server Microsoft 2019-cumulative_update_9 (including) 2019-cumulative_update_9 (including)

References