Man-in-the-Middle (MitM) attack in Synology DiskStation Manager (DSM) and SkyNas

1) Man-in-the-Middle (MitM) attack

EUVDB-ID: #VU30136

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a Man-in-the-Middle (MitM) attack.

The vulnerability exists due to an unspecified error. A remote attacker with ability to intercept traffic can perform a Man-in-the-Middle (MitM) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

DiskStation Manager (DSM): 6.2.1-23824 - 6.2.3-25426-1

SkyNAS: All versions

External links

http://www.synology.com/cs-cz/security/advisory/Synology_SA_20_18

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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