Vulnerability identifier: #VU15452

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8569

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Yammer Desktop App
Client/Desktop applications / Messaging software

Vendor: Microsoft

Description

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

The vulnerability exists in the Yammer desktop application due to the loading of arbitrary content. A remote unauthenticated attacker can supply specially crafted input and execute arbitrary code with elevated privileges.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Yammer Desktop App: All versions

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8569

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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