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



Published: 2020-07-16
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE ID N/A
CWE ID CWE-300
Exploitation vector Network
Public exploit N/A
Vulnerable software
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DiskStation Manager (DSM)
Server applications / File servers (FTP/HTTP)

SkyNAS
Server applications / Other server solutions

Vendor Synology Inc.

Security Advisory

This security advisory describes one medium risk vulnerability.

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

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] [PCI]

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, 6.2.1-23824-1, 6.2.1-23824-2, 6.2.1-23824-3, 6.2.1-23824-4, 6.2.1-23824-6, 6.2.2-24922, 6.2.2-24922-1, 6.2.2-24922-2, 6.2.2-24922-3, 6.2.2-24922-4, 6.2.3-25423, 6.2.3-25426, 6.2.3-25426-1

SkyNAS: All versions

CPE External links

https://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.



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