Vulnerability identifier: #VU16480

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8604

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft Exchange Server
Server applications / Mail servers

Vendor: Microsoft

Description

The vulnerability allows a remote authenticated attacker to tamper data of other users.

The vulnerability exists due to insufficient validation of user-supplied input when processing user profile data. A remote authenticated attacker can send a specially crafted request to the server and modify target user's profile.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Exchange Server: 2016 Cumulative Update 10 15.01.1531.003 - 2016 Cumulative Update 11 15.01.1591.010

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8604

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.