Improper input validation in Microsoft Exchange Server - CVE-2018-8265

 

Improper input validation in Microsoft Exchange Server - CVE-2018-8265

Published: October 9, 2018 / Updated: October 9, 2018


Vulnerability identifier: #VU15257
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-8265
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Microsoft Exchange Server

Detailed vulnerability description

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

The vulnerability exists due to an error when processing email messages within Microsoft Exchange. A remote unauthenticated attacker can send a specially crafted email, trick the victim into performing multiple actions while replying to the message and execute arbitrary code on the target system.

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


How to mitigate CVE-2018-8265

Install updates from vendor's website.

Sources