#VU54705 Code Injection in Microsoft Exchange Server


Published: 2021-08-11 | Updated: 2021-09-07

Vulnerability identifier: #VU54705

Vulnerability risk: High

CVSSv3.1:

CVE-ID: CVE-2021-34473

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Microsoft Exchange Server
Server applications / Mail servers

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in the Microsoft Exchange Server. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Exchange Server: 2013 Cumulative Update 23 15.00.1497.002


CPE

External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34473


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability